BRENCO INC
SC 14D1, 1996-06-20
BALL & ROLLER BEARINGS
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<PAGE>
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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
 
                                 SCHEDULE 14D-1
                   TENDER OFFER STATEMENT PURSUANT TO SECTION
                14(D)(1) OF THE SECURITIES EXCHANGE ACT OF 1934
                                      AND
                                  SCHEDULE 13D
                   UNDER THE SECURITIES EXCHANGE ACT OF 1934
 
                              BRENCO, INCORPORATED
                           (Name of Subject Company)
 
                                   BAS, INC.,
                              GRANTLEY CORPORATION
                                      AND
                               VARLEN CORPORATION
                                   (Bidders)
 
                    COMMON STOCK, PAR VALUE $1.00 PER SHARE
 
                         (Title of Class of Securities)
 
                                  107061 10 3
 
                     (CUSIP Number of Class of Securities)
 
                                Vicki L. Casmere
                 Vice President, General Counsel and Secretary
                               Varlen Corporation
                              55 Shuman Boulevard
                                 P.O. Box 3089
                        Naperville, Illinois 60556-7089
                           (708) 420-0400 (ext. 304)
          (Name, Address and Telephone Numbers of Person Authorized to
            Receive Notices and Communications on Behalf of Bidders)
 
                                   Copies to:
                              Claude A. Baum, Esq.
                             Dechert Price & Rhoads
                               477 Madison Avenue
                            New York, New York 10022
                                 (212) 326-3576
 
                                 June 15, 1996
       (Date of Event which Requires Filing of Statement on Schedule 13D)
 
                           CALCULATION OF FILING FEE
 
<TABLE>
<CAPTION>
                TRANSACTION
               VALUATION(1)                  AMOUNT OF FILING FEE(2)
     <S>                                <C>
               $157,177,470                        $31,535.49
</TABLE>
 
(1) Determined in accordance with Rule 0-11(d) of the Securities Exchange Act of
    1934, as amended. This Transaction Valuation assumes, solely for purposes of
    calculating  the  filing  fee  for  this  Schedule  14D-1,  the  purchase of
    9,747,440 shares of common stock, par  value $1.00 per share (the  "Shares")
    of  Brenco, Incorporated at  $16.125 per Share  net to seller  in cash. Such
    number of Shares  represents all of  the Shares outstanding  as of June  14,
    1996,  other than  460,000 shares  owned by  Grantley Corporation,  a wholly
    owned subsidiary of Varlen Corporation.
 
(2) Includes a Schedule 13D filing fee of $100.
 
/ /  Check box if any part of the  fee is offset as provided by Rule  0-11(a)(2)
     and  identify the filing with which the offsetting fee was previously paid.
     Identify the previous filing by registration statement number, or the  Form
     or Schedule and the date of its filing.
 
<TABLE>
<S>                                     <C>
Amount Previously Paid:                 Filing Party:
Form or Registration No.:               Date Filed:
</TABLE>
 
                              (Page 1 of 10 Pages)
 
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<PAGE>
 
CUSIP NO. 107061 10 3                14D-1                   PAGE 2 OF 10 PAGES
 
1   NAME OF REPORTING PERSON
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
    BAS, Inc.
 
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*    (a) / /
    (b) / /
 
3   SEC USE ONLY
 
4   SOURCE OF FUNDS*
 
      BK/AF
 
5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(e) or 2(f)                                         / /
 
6   CITIZENSHIP OR PLACE OF ORGANIZATION
 
      Virginia
7   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
      2,568,343**
 
8   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (7)
    EXCLUDES CERTAIN SHARES*                                           / /
 
9   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (7)
 
      25.2% of the Shares outstanding as of June 14, 1996**
10  TYPE OF REPORTING PERSON*
 
      CO
 
                     * SEE INSTRUCTIONS BEFORE FILLING OUT!
 
      **SEE NOTE ON PAGE 4
<PAGE>
 
CUSIP NO. 107061 10 3                14D-1                   PAGE 3 OF 10 PAGES
 
1   NAME OF REPORTING PERSON
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
    Grantley Corporation
 
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*    (a) / /
    (b) / /
 
3   SEC USE ONLY
 
4   SOURCE OF FUNDS*
 
      AF
 
5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(e) or 2(f)                                         / /
 
6   CITIZENSHIP OR PLACE OF ORGANIZATION
 
      Delaware
7   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
      2,568,343**
 
8   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (7)
    EXCLUDES CERTAIN SHARES*                                           / /
 
9   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (7)
 
      25.2% of the Shares outstanding as of June 14, 1996**
10  TYPE OF REPORTING PERSON*
 
      CO
 
                     * SEE INSTRUCTIONS BEFORE FILLING OUT!
 
      **SEE NOTE ON PAGE 4
<PAGE>
 
CUSIP NO. 107061 10 3                14D-1                   PAGE 4 OF 10 PAGES
 
1   NAME OF REPORTING PERSON
    S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON
    Varlen Corporation
 
2   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*    (a) / /
    (b) / /
 
3   SEC USE ONLY
 
4   SOURCE OF FUNDS*
 
      BK, WC
 
5   CHECK BOX IF DISCLOSURE OF LEGAL PROCEEDINGS IS REQUIRED PURSUANT TO ITEMS
    2(e) or 2(f)                                         / /
 
6   CITIZENSHIP OR PLACE OF ORGANIZATION
 
      Delaware
7   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON
 
      2,568,343**
 
8   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (7)
    EXCLUDES CERTAIN SHARES*                                           / /
 
9   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (7)
 
      25.2% of the Shares outstanding as of June 14, 1996**
10  TYPE OF REPORTING PERSON*
 
      CO
 
                     * SEE INSTRUCTIONS BEFORE FILLING OUT!
 
      **SEE NOTE ON PAGE 4
<PAGE>
                                EXPLANATORY NOTE
 
    Varlen  Corporation ("Varlen")  and certain  of the  shareholders of Brenco,
Incorporated (the "Company") entered into a Shareholder Tender Agreement,  dated
as of June 15, 1996 (the "Shareholder Tender Agreement") pursuant to which, upon
the  terms and conditions set forth therein, certain shareholders of the Company
(the "Tendering  Shareholders"), including  Needham B.  Whitfield, Chairman  and
Chief  Executive Officer  of the Company,  Anne Whitfield  Kenny (whose husband,
John C. Kenny, is a  director of the Company),  and certain members (and  trusts
for  the benefit of members)  of their families have  each agreed to tender (and
not withdraw, subject to certain  exceptions) pursuant to the Purchaser's  Offer
to  Purchase  dated June  20,  1996 (the  "Offer  to Purchase")  and  before the
Expiration Date (as defined in the Offer to Purchase) all of the Shares owned of
record or beneficially by such Tendering Shareholders (except for 50,000  Shares
in  the  aggregate which  may  be contributed  to charity)  on  the date  of the
Shareholder Tender  Agreement, together  with any  Shares acquired  by any  such
Tendering  Shareholder  prior  to  the  termination  of  the  Shareholder Tender
Agreement. The Tendering  Shareholders own  in the  aggregate 2,108,343  Shares,
which  represent in the aggregate approximately  20.7% of all Shares outstanding
on June  14,  1996. The  number  of Shares  subject  to the  Shareholder  Tender
Agreement  (plus  460,000 shares  acquired by  Grantley Corporation,  a Delaware
Corporation ("Grantley"), and a wholly owned subsidiary of Varlen, prior to  the
date  of the Shareholder Tender  Agreement) is reflected in rows  7 and 9 of the
table above.  The  Shareholder Tender  Agreement  remains in  effect  until  the
earlier  of the following:  (i) the date  the Acquisition Agreement  dated as of
June 15, 1996 among Varlen, the Purchaser and the Company is terminated and (ii)
the Effective Date (as defined in the Offer to Purchase). The Shareholder Tender
Agreement is more fully described in Section  11 ("Purpose of the Offer and  the
Merger;  Plans for the Company; the Acquisition Agreement and Shareholder Tender
Agreement") of the  Offer to  Purchase. Except  with respect  to 460,000  Shares
acquired  by Grantley  prior to  the date  of the  Shareholder Tender Agreement,
which Shares Grantley owns directly, neither the Purchaser, Varlen nor  Grantley
will  have any voting or dispositive power  with respect to the Shares which are
the subject of the Shareholder Tender Agreement until acceptance and payment for
such Shares  is  made pursuant  to  the Offer  to  Purchase, and  Grantley,  the
Purchaser and Varlen expressly disclaim beneficial ownership of such Shares.
 
                              (Page 5 of 10 Pages)
<PAGE>
    This  Tender Offer Statement on  Schedule 14D-1 relates to  an offer by BAS,
Inc., a Virginia corporation (the "Purchaser"), and a wholly owned subsidiary of
Varlen Corporation, a Delaware  corporation ("Varlen"), to  purchase all of  the
outstanding shares of Common Stock, par value $1.00 per share (the "Shares"), of
Brenco,  Incorporated, a  Virginia corporation  (the "Company"),  at $16.125 per
share, net to seller in cash without interest, upon the terms and subject to the
conditions set forth in the Offer to Purchase dated June 20, 1996 (the "Offer to
Purchase") and  in  the related  Letter  of  Transmittal, copies  of  which  are
attached  hereto as Exhibits (a)(1)  and (a)(2), respectively (collectively, the
"Offer"). The Offer  is made pursuant  to an Acquisition  Agreement dated as  of
June  15, 1996  among Varlen,  the Purchaser  and the  Company (the "Acquisition
Agreement"), a copy of which is attached hereto as Exhibit (c)(1).
 
    This Tender  Offer  Statement on  Schedule  14D-1 shall  also  constitute  a
Schedule  13D with respect to the Shareholder  Tender Agreement dated as of June
15,  1996  (the  "Shareholder  Tender   Agreement")  entered  into  by   certain
shareholders  of the Company (the "Tendering Shareholders") including Needham B.
Whitfield, Chairman and Chief Executive  Officer of the Company, Anne  Whitfield
Kenny  (whose husband, John C. Kenny, is a director of the Company), and certain
members (and  trusts for  the benefit  of such  members) of  their families  and
Varlen. Pursuant to the Shareholder Tender Agreement, the Tendering Shareholders
have  each agreed  to tender (and  not withdraw, subject  to certain exceptions)
pursuant to the Offer and prior to the Expiration Date (as defined in the  Offer
to Purchase) all of the Shares owned of record or beneficially by such Tendering
Shareholder  (except for 50,000 Shares in the aggregate which may be contributed
to charity) on the date of  the Shareholder Tender Agreement, together with  any
Shares  acquired by any  such Tendering Shareholder prior  to the termination of
the Shareholder Tender Agreement. A copy of the Shareholder Tender Agreement  is
filed as Exhibit (c)(2) hereto.
 
ITEM 1.  SECURITY AND SUBJECT COMPANY.
 
    (a)  The name  of the  subject company  is Brenco,  Incorporated, a Virginia
corporation, and the address of its principal executive office is One Park  West
Circle, Midlothian, Virginia 23113.
 
    (b)  The information set forth in the  Introduction of the Offer to Purchase
is incorporated herein by reference.
 
    (c) The  information set  forth  in Section  6  ("Market Prices  of  Shares;
Dividends") of the Offer to Purchase is incorporated herein by reference.
 
ITEM 2.  IDENTITY AND BACKGROUND.
 
    (a)-(d)  and (g)  The  information set forth in  the Introduction, Section 9
("Certain Information Concerning the Purchaser and Varlen) and Schedule A of the
Offer to Purchase is incorporated herein by reference.
 
    (e)-(f)   The  information set  forth  in Section  9  ("Certain  Information
Concerning  the Purchaser and Varlen") of  the Offer to Purchase is incorporated
herein by reference.
 
ITEM 3.  PAST CONTACTS, TRANSACTIONS OR NEGOTIATIONS WITH THE SUBJECT COMPANY.
 
    (a)-(b)  The information set forth in the Introduction, Section 9  ("Certain
Information  Concerning the Purchaser  and Varlen"), Section  10 ("Background of
the Offer"), Section 11  ("Purpose of the  Offer and the  Merger; Plans for  the
Company;  the  Acquisition  Agreement  and  Shareholder  Tender  Agreement") and
Section 13 ("Certain Conditions of  the Offer and the  Merger") of the Offer  to
Purchase is incorporated herein by reference.
 
ITEM 4.  SOURCE AND AMOUNT OF FUNDS OR OTHER CONSIDERATION.
 
    (a)-(b)   The  information set  forth in Section  12 ("Source  and Amount of
Funds") of the Offer to Purchase is incorporated herein by reference.
 
    (c) Not applicable.
 
                              (Page 6 of 10 Pages)
<PAGE>
ITEM 5.  PURPOSE OF THE TENDER OFFER AND PLANS OR PROPOSALS OF THE BIDDER.
 
    (a)-(e)    The  information  set  forth  in  the  Introduction,  Section  10
("Background  of the Offer"), Section 11 ("Purpose  of the Offer and the Merger;
Plans  for  the  Company;  the  Acquisition  Agreement  and  Shareholder  Tender
Agreement") and Section 13 ("Certain Conditions of the Offer and the Merger") of
the Offer to Purchase is incorporated herein by reference.
 
    (f)-(g)   The information  set forth in  Section 7 ("Certain  Effects of the
Offer") of the Offer to Purchase is incorporated herein by reference.
 
ITEM 6.  INTEREST IN SECURITIES OF THE SUBJECT COMPANY.
 
    (a)-(b)  The information set forth in the Introduction, Section 8  ("Certain
Information Concerning the Company"), Section 9 ("Certain Information Concerning
the  Purchaser and Varlen"), Section 10  ("Background of the Offer") and Section
11 ("Purpose of the Offer and the Merger; Plans for the Company; the Acquisition
Agreement and  Shareholder  Tender  Agreement)  of  the  Offer  to  Purchase  is
incorporated herein by reference.
 
ITEM 7.  CONTRACTS, ARRANGEMENTS, UNDERSTANDINGS OR RELATIONSHIPS WITH RESPECT
         TO THE SUBJECT COMPANY'S SECURITIES.
 
    The   information  set  forth  in  the  Introduction,  Section  9  ("Certain
Information Concerning the  Purchaser and Varlen"),  Section 10 ("Background  of
the  Offer"), Section 11  ("Purpose of the  Offer and the  Merger; Plans for the
Company; the  Acquisition  Agreement  and  Shareholder  Tender  Agreement")  and
Section  13 ("Certain Conditions of  the Offer and the  Merger") of the Offer to
Purchase is incorporated herein by reference.
 
ITEM 8.  PERSONS RETAINED, EMPLOYED OR TO BE COMPENSATED.
 
    The information set forth in the Introduction and Section 17 ("Certain  Fees
and Expenses") of the Offer to Purchase is incorporated herein by reference.
 
ITEM 9.  FINANCIAL STATEMENTS OF CERTAIN BIDDERS.
 
    The  information set forth in Section 9 ("Certain Information Concerning the
Purchaser and  Varlen") of  the  Offer to  Purchase  is incorporated  herein  by
reference.
 
ITEM 10.  ADDITIONAL INFORMATION.
 
    (a) None.
 
    (b)-(c)   The information set forth in Section 2 ("Acceptance of and Payment
    for Shares")  and Section  15  ("Certain Legal  Matters")  of the  Offer  to
    Purchase is incorporated herein by reference.
 
    (d)  The information set forth in Section 7 ("Certain Effects of the Offer")
    of the Offer to Purchase is incorporated herein by reference.
 
    (e) None.
 
    (f) The  information set  forth in  the Offer  to Purchase  and the  related
Letter of Transmittal, the Acquisition Agreement dated as of June 15, 1996 among
Varlen, the Purchaser and the Company and the Shareholder Tender Agreement dated
as of June 15, 1996 among Varlen and the Tendering Shareholders, copies of which
are attached hereto as Exhibits (a)(1), (a)(2), (c)(1) and (c)(2), respectively,
is incorporated herein in its entirety.
 
ITEM 11.  MATERIAL TO BE FILED AS EXHIBITS.
 
    (a)(1)  --  Offer to Purchase dated June 20, 1996
 
    (a)(2)  --  Letter of Transmittal dated June 20, 1996
 
    (a)(3)  --  Notice of Guaranteed Delivery
 
    (a)(4)  --  Form of Letter to Brokers, Dealers, Commercial Banks, Trust
                Companies and Nominees
 
                              (Page 7 of 10 Pages)
<PAGE>
    (a)(5)  --  Form of Letter to Clients for Use by Brokers, Dealers,
                Commercial Banks, Trust Companies and Nominees
 
    (a)(6)  --  Text of Joint Press Release issued by Varlen and the Company on
                June 17, 1996
 
    (a)(7)  --  Form of Summary Advertisement dated June 20, 1996
 
    (a)(8)  --  Text of Joint Press Release issued by Varlen and the Company on
                June 20, 1996
 
    (a)(9)  --  Guidelines for Certification of Taxpayer Identification Number
                on Substitute Form W-9
 
    (b)(1)  --  Form of Credit Agreement among Varlen, the Borrowing
                Subsidiaries party thereto, the Lenders to be identified therein
                and The First National Bank of Chicago, as agent
 
    (c)(1)  --  Acquisition Agreement dated as of June 15, 1996 among Varlen,
                the Purchaser and the Company
 
    (c)(2)  --  Shareholder Tender Agreement, dated as of June 15, 1996 among
                Varlen and the Tendering Shareholders
 
    (c)(3)  --  Opinion of Mays & Valentine dated June 15, 1996
 
    (d)-(f)  --  Not applicable
 
                              (Page 8 of 10 Pages)
<PAGE>
                                   SIGNATURES
 
    After  due inquiry and to  the best of our  knowledge and belief, we certify
that the information set forth in this statement is true, complete and correct.
 
                                          VARLEN CORPORATION
 
<TABLE>
<S>                                            <C>
                                               By: /s/ RICHARD L. WELLEK
                                                   -----------------------------------------
                                                Name: Richard L. Wellek
                                                Title: President and Chief Executive Officer
</TABLE>
 
                                          GRANTLEY CORPORATION
 
<TABLE>
<S>                                            <C>
                                               By: /s/ LARRY KORAL
                                                   -----------------------------------------
                                                Name: Larry Koral
                                                Title: Vice President
</TABLE>
 
                                          BAS, INC.
 
<TABLE>
<S>                                            <C>
                                               By: /s/ RICHARD L. WELLEK
                                                   -----------------------------------------
                                                Name: Richard L. Wellek
                                                Title: President and Chief Executive Officer
</TABLE>
 
Dated: June 20, 1996
 
                              (Page 9 of 10 Pages)
<PAGE>
 
<TABLE>
<CAPTION>
                                                                                                      SEQUENTIALLY
 EXHIBIT                                                                                               NUMBERED
  NUMBER    DESCRIPTION                                                                                  PAGE
- ----------                                                                                            -----------
<S>         <C>                                                                                       <C>
(a)(1)      Offer to Purchase dated June 20, 1996
(a)(2)      Letter of Transmittal dated June 20, 1996
(a)(3)      Notice of Guaranteed Delivery
(a)(4)      Form of Letter to Brokers, Dealers, Commercial Banks, Trust Companies and Nominees
(a)(5)      Form of Letter to Clients for Use by Brokers, Dealers, Commercial Banks, Trust Companies
            and Nominees
(a)(6)      Text of Joint Press Release issued by Varlen and the Company on June 17, 1996
(a)(7)      Form of Summary Advertisement dated June 20, 1996
(a)(8)      Text of Joint Press Release issued by Varlen and the Company on June 20, 1996
(a)(9)      Guidelines for Certification of Taxpayer Identification Number on Substitute Form W-9
(b)(1)      Form of Credit Agreement among Varlen, the Borrowing Subsidiaries party thereto, the
            Lenders to be identied therein and The First National Bank of Chicago, as agent
(c)(1)      Acquisition Agreement dated as of June 15, 1996 among Varlen, the Purchaser and the
            Company
(c)(2)      Shareholder Tender Agreement, dated as of June 15, 1996 among Varlen and the Tendering
            Shareholders
(c)(3)      Opinion of Mays & Valentine dated June 15, 1996
</TABLE>
 
                             (Page 10 of 10 Pages)

<PAGE>
                           OFFER TO PURCHASE FOR CASH
                     ALL OUTSTANDING SHARES OF COMMON STOCK
 
                                       OF
 
                              BRENCO, INCORPORATED
 
                                       AT
 
                             $16.125 NET PER SHARE
 
                                       BY
 
                                   BAS, INC.
 
                          A WHOLLY OWNED SUBSIDIARY OF
 
                               VARLEN CORPORATION
 
  THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY
         TIME, ON THURSDAY, JULY 18, 1996 UNLESS THE OFFER IS EXTENDED.
 
    THE  BOARD OF DIRECTORS OF BRENCO, INCORPORATED HAS UNANIMOUSLY APPROVED THE
OFFER, THE MERGER  (AS HEREINAFTER  DEFINED) AND THE  ACQUISITION AGREEMENT  (AS
HEREINAFTER DEFINED), HAS DETERMINED THAT THE TERMS OF THE OFFER, THE MERGER AND
THE  ACQUISITION  AGREEMENT  ARE  FAIR  TO AND  IN  THE  BEST  INTERESTS  OF THE
SHAREHOLDERS OF BRENCO, INCORPORATED AND RECOMMENDS THAT SHAREHOLDERS ACCEPT THE
OFFER AND TENDER THEIR SHARES (AS HEREINAFTER DEFINED) PURSUANT TO THE OFFER.
 
    THE OFFER  IS CONDITIONED  UPON,  AMONG OTHER  THINGS, THERE  BEING  VALIDLY
TENDERED AND NOT WITHDRAWN PRIOR TO THE EXPIRATION DATE (AS HEREINAFTER DEFINED)
A  NUMBER  OF SHARES  OF BRENCO,  INCORPORATED WHICH,  TOGETHER WITH  THE SHARES
BENEFICIALLY OWNED BY VARLEN CORPORATION, BAS, INC. AND/OR OTHER SUBSIDIARIES OF
VARLEN CORPORATION, REPRESENTS AT LEAST TWO-THIRDS OF THE TOTAL NUMBER OF SHARES
THEN OUTSTANDING  ON  A  FULLY  DILUTED  BASIS.  THE  PURCHASER  ESTIMATES  THAT
APPROXIMATELY 6,639,627 SHARES WILL NEED TO BE VALIDLY TENDERED (AND NOT VALIDLY
WITHDRAWN) TO SATISFY THIS MINIMUM CONDITION (AS HEREINAFTER DEFINED). THE OFFER
IS SUBJECT TO CERTAIN OTHER CONDITIONS. SEE SECTIONS 1, 13 AND 16.
 
    VARLEN  CORPORATION  HAS ENTERED  INTO A  SHAREHOLDER TENDER  AGREEMENT WITH
CERTAIN SHAREHOLDERS OF  BRENCO, INCORPORATED INCLUDING  THE CHAIRMAN AND  CHIEF
EXECUTIVE  OFFICER OF  BRENCO, INCORPORATED AND  CERTAIN MEMBERS  OF HIS FAMILY,
PURSUANT TO WHICH, AMONG OTHER THINGS, SUCH SHAREHOLDERS HAVE AGREED (SUBJECT TO
CERTAIN  EXCEPTIONS)  TO  TENDER  IN  THE  OFFER  APPROXIMATELY  20.7%  OF   ALL
OUTSTANDING SHARES.
                             ---------------------
 
                                   IMPORTANT
 
    ANY  SHAREHOLDER DESIRING TO  TENDER ALL OR A  PORTION OF SUCH SHAREHOLDER'S
SHARES SHOULD  EITHER (1)  COMPLETE AND  SIGN THE  LETTER OF  TRANSMITTAL (OR  A
FACSIMILE  THEREOF)  IN  ACCORDANCE  WITH  THE  INSTRUCTIONS  IN  THE  LETTER OF
TRANSMITTAL AND MAIL  OR DELIVER  THE LETTER  OF TRANSMITTAL  TOGETHER WITH  THE
CERTIFICATE(S)  EVIDENCING SUCH SHARES, AND ANY OTHER REQUIRED DOCUMENTS, TO THE
DEPOSITARY OR  TENDER  SUCH SHARES  PURSUANT  TO THE  PROCEDURE  FOR  BOOK-ENTRY
TRANSFER  SET FORTH IN SECTION  4 OR (2) REQUEST  HIS BROKER, DEALER, COMMERCIAL
BANK, TRUST  COMPANY OR  OTHER NOMINEE  TO  EFFECT THE  TRANSACTION FOR  HIM.  A
SHAREHOLDER  WHOSE  SHARES  ARE REGISTERED  IN  THE  NAME OF  A  BROKER, DEALER,
COMMERCIAL BANK,  TRUST  COMPANY OR  OTHER  NOMINEE MUST  CONTACT  SUCH  BROKER,
DEALER,  COMMERCIAL BANK,  TRUST COMPANY  OR OTHER  NOMINEE IF  SUCH SHAREHOLDER
DESIRES TO TENDER SUCH SHARES.
 
    A  SHAREHOLDER  WHO  DESIRES  TO   TENDER  SHARES  AND  WHOSE   CERTIFICATES
REPRESENTING  SUCH SHARES  ARE NOT IMMEDIATELY  AVAILABLE, OR  WHO CANNOT COMPLY
WITH THE PROCEDURES FOR BOOK-ENTRY TRANSFER  ON A TIMELY BASIS, MAY TENDER  SUCH
SHARES  BY FOLLOWING THE PROCEDURE FOR  GUARANTEED DELIVERY SET FORTH IN SECTION
4.
 
    QUESTIONS AND REQUESTS  FOR ASSISTANCE  MAY BE DIRECTED  TO THE  INFORMATION
AGENT  OR  TO THE  DEALER MANAGER  AT THEIR  RESPECTIVE ADDRESSES  AND TELEPHONE
NUMBERS SET FORTH ON THE BACK COVER OF THIS OFFER TO PURCHASE. ADDITIONAL COPIES
OF THIS OFFER TO PURCHASE, THE  LETTER OF TRANSMITTAL, THE NOTICE OF  GUARANTEED
DELIVERY  AND OTHER RELATED MATERIALS MAY  BE DIRECTED TO THE INFORMATION AGENT,
THE DEALER MANAGER, OR TO BROKERS, DEALERS, COMMERCIAL BANKS OR TRUST COMPANIES.
                             ---------------------
 
                      THE DEALER MANAGER FOR THE OFFER IS:
 
                                LEHMAN BROTHERS
 
June 20, 1996
<PAGE>
                               TABLE OF CONTENTS
 
<TABLE>
<CAPTION>
SECTION                                                      PAGE
- -------                                                      -----
<C>      <S>                                                 <C>
INTRODUCTION...............................................     1
    1.   Terms of the Offer; Expiration Date...............     4
    2.   Acceptance of and Payment for Shares..............     4
    3.   Withdrawal Rights.................................     5
    4.   Procedures for Accepting the Offer and Tendering
          Shares...........................................     6
    5.   Certain Income Tax Consequences...................     8
    6.   Market Prices of Shares; Dividends................     9
    7.   Certain Effects of the Offer......................     9
    8.   Certain Information Concerning the Company........    10
    9.   Certain Information Concerning the Purchaser and
          Varlen...........................................    12
   10.   Background of the Offer...........................    14
   11.   Purpose of the Offer and the Merger; Plans for the    16
          Company; the Acquisition Agreement and
          Shareholder Tender Agreement.....................
   12.   Source and Amount of Funds........................    24
   13.   Certain Conditions of the Offer and the Merger....    25
   14.   Dividends and Distributions.......................    27
   15.   Certain Legal Matters.............................    28
   16.   Extension of Tender Period, Termination and
          Amendments.......................................    31
   17.   Certain Fees and Expenses.........................    32
   18.   Miscellaneous.....................................    33
Schedule A -- Directors and Executive Officers of Varlen
and the Purchaser..........................................   A-1
</TABLE>
<PAGE>
TO THE HOLDERS OF COMMON STOCK OF BRENCO, INCORPORATED:
 
                                  INTRODUCTION
 
    BAS,  Inc.,  a Virginia  corporation (the  "Purchaser")  and a  wholly owned
subsidiary of  Varlen Corporation,  a  Delaware corporation  ("Varlen"),  hereby
offers  to purchase all outstanding shares of  the Common Stock, par value $1.00
per share (the "Shares"), of  Brenco, Incorporated, a Virginia corporation  (the
"Company"),  at  $16.125 per  Share,  net to  the  seller in  cash,  without any
interest, upon the terms and subject to  the conditions set forth in this  Offer
to  Purchase and in the related Letter of Transmittal (which together constitute
the "Offer"). Tendering shareholders will not be obligated to pay brokerage fees
or commissions  or, except  as  set forth  in Instruction  6  of the  Letter  of
Transmittal,  stock  transfer  taxes  with respect  to  the  purchase  of Shares
pursuant to the Offer. The Purchaser will pay charges and reimbursable  expenses
of Lehman Brothers Inc., which is acting as the Dealer Manager for the Offer (in
such capacity, the "Dealer Manager"), Harris Trust Company of New York, which is
acting  as the Depositary (the "Depositary") and D.F. King & Co., Inc., which is
acting  as  the  Information  Agent  (the  "Information  Agent"),  incurred   in
connection with the Offer.
 
    THE  BOARD OF DIRECTORS  OF THE COMPANY HAS  UNANIMOUSLY APPROVED THE OFFER,
THE MERGER AND THE ACQUISITION AGREEMENT,  HAS DETERMINED THAT THE TERMS OF  THE
OFFER,  THE MERGER  AND THE ACQUISITION  AGREEMENT ARE  FAIR TO AND  IN THE BEST
INTERESTS OF THE SHAREHOLDERS  OF THE COMPANY  AND RECOMMENDS THAT  SHAREHOLDERS
ACCEPT THE OFFER AND TENDER THEIR SHARES PURSUANT TO THE OFFER.
 
    THE  OFFER  IS CONDITIONED  UPON, AMONG  OTHER  THINGS, THERE  BEING VALIDLY
TENDERED AND NOT WITHDRAWN PRIOR  TO THE EXPIRATION DATE  A NUMBER OF SHARES  OF
THE  COMPANY WHICH, TOGETHER  WITH THE SHARES BENEFICIALLY  OWNED BY VARLEN, THE
PURCHASER AND/OR OTHER SUBSIDIARIES OF VARLEN, REPRESENTS AT LEAST TWO-THIRDS OF
THE TOTAL  NUMBER OF  SHARES THEN  OUTSTANDING  ON A  FULLY DILUTED  BASIS  (THE
"MINIMUM  CONDITION"). THE  OFFER IS  SUBJECT TO  CERTAIN OTHER  CONDITIONS. SEE
SECTIONS 1, 13 AND 16.
 
    Wheat, First  Securities, Inc.,  has  delivered to  the Company's  Board  of
Directors  its opinion that the consideration to be received by the shareholders
of the Company pursuant to the Offer and the Merger is fair to such shareholders
from a financial point of  view. The Purchaser has  been advised by the  Company
that  a copy  of such opinion  will be set  forth in  full as an  exhibit to the
Company's Solicitation/Recommendation Statement on Schedule 14D-9 (the "Schedule
14D-9") which is being distributed  to the Company's shareholders.  Shareholders
are  urged  to  read  the opinion  in  its  entirety for  a  description  of the
assumptions made, matters considered and limitations of the review undertaken by
Wheat, First Securities, Inc.
 
    The purpose of  the Offer is  to facilitate  the acquisition of  all of  the
outstanding  Shares and thereby  to enable Purchaser to  acquire control of, and
the entire equity interest in,  the Company. The Offer  will be followed by  the
Merger  which will  enable the Purchaser  to acquire all  outstanding Shares not
tendered and  purchased  pursuant to  the  Offer  or acquired  pursuant  to  the
Shareholder Tender Agreement (as hereinafter defined).
 
    The  Offer is being made  pursuant to an Acquisition  Agreement, dated as of
June 15, 1996 (the "Acquisition Agreement"), by and among Varlen, the  Purchaser
and  the  Company. Pursuant  to the  Acquisition Agreement,  and subject  to the
satisfaction or waiver of  the conditions set forth  therein, the Purchaser  has
agreed  to make the Offer  and purchase any and  all Shares validly tendered and
not withdrawn following the  later of (i) the  expiration or termination of  all
waiting  periods under the Hart-Scott-Rodino Antitrust Improvements Act of 1976,
as amended (the  "HSR Act"),  applicable to the  Offer and  (ii) the  Expiration
Date.  After the completion of the Offer,  the Purchaser will be merged with and
into the Company  (the "Merger")  and each  Share then  outstanding (other  than
Shares  held by Varlen,  the Purchaser or  any direct or  indirect subsidiary of
Varlen, the  Purchaser  or  the  Company,  and  Shares  with  respect  to  which
dissenter's  rights under  the Virginia Stock  Corporation Act,  as amended (the
"Virginia Act") are properly exercised) will be converted upon effectiveness  of
the
<PAGE>
Merger (the "Effective Time") into the right to receive $16.125 in cash, without
any  interest.  Following  the  consummation of  the  Merger,  the  Company will
continue as the surviving corporation and  will be a wholly owned subsidiary  of
Varlen.
 
    The  Acquisition Agreement provides  that, promptly upon  the acceptance for
payment of,  and payment  by the  Purchaser in  accordance with  the Offer  for,
Shares  constituting 50% or more of all  Shares then outstanding pursuant to the
Offer, and  from time  to time  thereafter, the  Purchaser will  be entitled  to
designate  such number of directors, rounded up to the next whole number, on the
Board of Directors of the Company  as will give the Purchaser representation  on
the  Board of Directors equal to at  least that number of directors which equals
the product  of  the  total  number  of directors  on  the  Board  of  Directors
multiplied  by the percentage that such number of Shares so accepted for payment
and paid for or owned  by Varlen or the Purchaser  bears to the total number  of
Shares  outstanding; PROVIDED, HOWEVER, that the  Purchaser shall have the right
(in its discretion) to designate a  number of directors less than such  product;
AND PROVIDED FURTHER, HOWEVER, that at all times prior to the Merger there shall
be at least two members of the Board of Directors of the Company selected by the
current  members of  such Board. In  the Acquisition Agreement,  the Company has
agreed to use its best efforts to cause the Purchaser's designees to be  elected
to  the  Company's  Board  of  Directors  (including  mailing  to  the Company's
shareholders the  information  required  by  Section  14(f)  of  the  Securities
Exchange  Act  of  1934,  as  amended  (the  "Exchange  Act"),  and  Rule  14f-1
promulgated thereunder) and  to use  its reasonable  best efforts  to cause  the
resignation  of  current directors,  and/or  an increase  in  the number  of the
Company's directors, as may be directed by Varlen and required to implement  the
foregoing.
 
    The  Merger is subject to the satisfaction of various conditions, including,
among other things,  approval by  the shareholders  of the  Company if  required
under  the Virginia Act. If the Purchaser acquires the number of Shares required
to satisfy the Minimum Condition, it will control two-thirds of the  outstanding
Shares  on  a  fully  diluted  basis.  Accordingly,  the  Purchaser  would  have
sufficient voting power to  approve the Merger at  a meeting of shareholders  to
vote  thereon. In the  event that as a  result of the Offer,  Varlen owns 90% or
more of the outstanding Shares, the Purchaser and Varlen would be able to effect
the Merger pursuant  to the  short form merger  provisions of  the Virginia  Act
without  any action by any other shareholder  of the Company, but subject to the
requirements of the  Virginia Act that  a copy of  the Acquisition Agreement  be
mailed  to shareholders and  to the applicable  dissenter's rights provisions of
the Virginia Act.
 
    In connection with the Merger, the Company has agreed that it shall take all
action necessary,  in accordance  with  the Virginia  Act  and its  charter  and
bylaws,  to convene a meeting of its  shareholders as promptly as practicable to
consider and vote upon the Merger (if and to the extent required by the Virginia
Act), and to not take any action  which would result in the affirmative vote  of
shareholders  required for approval of the  Merger to be greater than two-thirds
of the votes entitled to be cast. Unless in the written opinion of legal counsel
to the Company (the delivery of which shall be confirmed in writing to Varlen by
such counsel) any of  the following actions would  create a substantial risk  of
violating  the fiduciary duties of the Board of Directors to the shareholders of
the Company, the  Company has  also agreed: (i)  that the  proxy or  information
statement  with respect  to any meeting  of the Company's  shareholders or other
corporate action  to approve  the Acquisition  Agreement and  the Merger,  shall
contain  the recommendation of  the Board of Directors  that the shareholders of
the Company vote to adopt and approve the Merger and the Acquisition  Agreement,
and (ii) if proxies are solicited, to use its reasonable best efforts to solicit
from its shareholders proxies in favor of such adoption and approval and to take
all  other action necessary or, in the reasonable judgment of Varlen, helpful to
secure the  vote or  consent of  shareholders required  by the  Virginia Act  to
effect  the Merger. At such meeting of  the shareholders of the Company, Varlen,
the Purchaser and their  direct and indirect subsidiaries  will vote all of  the
Shares then owned by any of them in favor of the Merger.
 
    Holders  of Shares may, in certain  circumstances, have a statutory right to
dissent from the Merger and  demand the "fair value"  of their Shares under  the
Virginia Act, provided they follow the
 
                                       2
<PAGE>
procedures  established by the Virginia Act  to exercise and perfect such right.
Any dissenting  shareholders will  have only  such rights  and privileges  as  a
shareholder  of the  Company as are  provided for under  Article 15 (DISSENTER'S
RIGHTS) of the Virginia Act. See Section 11.
 
    Simultaneously with entering into the Acquisition Agreement, Varlen  entered
into  a Shareholder Tender  Agreement (the "Shareholder  Tender Agreement") with
certain shareholders of  the Company (the  "Tendering Shareholders"),  including
Needham  B. Whitfield, Chairman and Chief Executive Officer of the Company, Anne
Whitfield Kenny (whose husband,  John C. Kenny, is  a director of the  Company),
and  certain members (and  trusts for the  benefit of members)  of their family.
Pursuant to the  Shareholder Tender  Agreement, each  Tendering Shareholder  has
agreed  to tender (subject to certain possible exceptions) pursuant to the Offer
and before the Expiration Date all of the Shares owned of record or beneficially
by such Tendering Shareholder (except for  50,000 Shares in the aggregate  which
may  be contributed to charity) on the date of the Shareholder Tender Agreement,
together with any Shares acquired by any such Tendering Shareholder prior to the
termination of the  Shareholder Tender  Agreement. As  of the  date hereof,  the
Tendering Shareholders beneficially own 2,108,343 Shares, or approximately 20.7%
of all outstanding Shares.
 
    The  Acquisition  Agreement and  the Shareholder  Tender Agreement  are more
fully described  in Section  11  of this  Offer  to Purchase.  Shareholders  are
encouraged  to read  that Section carefully,  together with all  other terms and
conditions of the Offer, before deciding whether to tender their Shares.
 
    According to the Company, on June 14, 1996 there were (i) 10,207,440  Shares
(including  62,576 restricted Shares issued pursuant to the Company's restricted
stock plan) outstanding, and (ii) 442,000 shares reserved for issuance upon  the
exercise  of outstanding stock  options issued pursuant  to Company stock option
plans. As  of  the date  of  this Offer  to  Purchase, a  subsidiary  of  Varlen
beneficially  owns 460,000 Shares. Based on the foregoing, the Minimum Condition
will be satisfied  if 6,639,627 Shares  are validly tendered  and not  withdrawn
prior to the Expiration Date.
 
    THE  OFFER WILL EXPIRE AT  12:00 MIDNIGHT, NEW YORK  CITY TIME, ON THURSDAY,
JULY 18, 1996, UNLESS THE OFFER IS EXTENDED.
 
    THE OFFER DOES NOT CONSTITUTE A SOLICITATION OF PROXIES FOR ANY MEETING. ANY
SUCH SOLICITATION WOULD BE MADE ONLY PURSUANT TO SEPARATE PROXY OR  SOLICITATION
MATERIALS  COMPLYING WITH THE REQUIREMENTS OF SECTION 14(A) OF THE EXCHANGE ACT,
AND THE RULES AND REGULATIONS PROMULGATED THEREUNDER.
 
                                       3
<PAGE>
    THIS OFFER  TO  PURCHASE  AND  THE RELATED  LETTER  OF  TRANSMITTAL  CONTAIN
IMPORTANT INFORMATION WHICH SHOULD BE READ CAREFULLY BEFORE ANY DECISION IS MADE
WITH RESPECT TO THE OFFER.
 
    1.   TERMS OF THE OFFER; EXPIRATION DATE.  Upon the terms and subject to the
conditions set  forth in  the Offer  (including,  if the  Offer is  extended  or
amended,  the terms and conditions of any extension or amendment), the Purchaser
will accept for payment and will pay for any and all Shares validly tendered  on
or  prior to the Expiration Date and  not withdrawn in accordance with Section 3
of this Offer to Purchase. The term "Expiration Date" means 12:00 midnight,  New
York  City time, on Thursday,  July 18, 1996, unless  the Purchaser, in its sole
discretion, shall have extended the period of time for which the Offer is  open,
in which event the term "Expiration Date" shall mean the latest time and date at
which the Offer, as so extended by the Purchaser, shall expire. See Section 16.
 
    The  Offer  is  subject  to  certain conditions  set  forth  in  Section 13,
including  satisfaction  of  the  Minimum   Condition  and  the  expiration   or
termination  of the waiting period applicable  to the Purchaser's acquisition of
Shares pursuant  to  the Offer  under  the HSR  Act.  If any  condition  to  the
Purchaser's  obligation to purchase shares is not satisfied prior to the payment
for any such Shares, the  Purchaser may (i) terminate  the Offer and return  all
tendered Shares to tendering shareholders, (ii) extend the Offer and, subject to
withdrawal  rights as set forth  in Section 3, retain  all such Shares until the
expiration of the Offer as so extended, (iii) waive such condition and,  subject
to  any requirement to extend the period of time during which the Offer is open,
purchase all Shares validly tendered by  the Expiration Date and not  withdrawn,
or  (iv)  delay acceptance  for payment  of  or payment  for Shares,  subject to
applicable law, until satisfaction or waiver of the conditions of the Offer.
 
    The Acquisition Agreement provides that,  unless previously approved by  the
Company,  the Purchaser will not reduce the  price to be paid per Share pursuant
to the Offer, change the  form of consideration to be  paid in the Offer or  the
Merger,  increase  the  Minimum  Condition  or  amend  the  terms  of  the Offer
(including any of the conditions  set forth in Section 13)  in a manner that  is
materially  adverse  to  the  holders  of  Shares.  For  a  description  of  the
Purchaser's right to extend the period of  time during which the Offer is  open,
and to amend, delay or terminate the Offer, see Section 16.
 
    The  Company has provided the Purchaser  with the Company's shareholder list
and security position  listings for the  purpose of disseminating  the Offer  to
holders  of Shares. This Offer to Purchase and the related Letter of Transmittal
will be mailed to  record holders of  Shares and will  be furnished to  brokers,
dealers,  banks and similar persons whose names, or the names of whose nominees,
appear on the shareholder list or, if applicable, who are listed as participants
in a clearing agency's security position listing, for subsequent transmittal  to
beneficial owners of Shares.
 
    2.  ACCEPTANCE OF AND PAYMENT FOR SHARES.  Upon the terms and subject to the
conditions  of the Offer  (including, if the  Offer is extended  or amended, the
terms and conditions  of any such  extension or amendment),  the Purchaser  will
purchase, by accepting for payment, and will pay for, any and all Shares validly
tendered  and  not  withdrawn  following  the later  of  (i)  the  expiration or
termination of all waiting periods under the HSR Act that are applicable to  the
purchase  of Shares  pursuant to  the Offer,  and (ii)  the Expiration  Date. In
addition, the Purchaser expressly reserves the right, in its sole discretion, to
delay the acceptance of, or payment for, Shares in order to comply, in whole  or
in  part, with  any applicable law.  See Section  15. In all  cases, payment for
Shares purchased pursuant to the Offer will be made only after timely receipt by
the Depositary  of  certificates  for  such Shares  or  timely  confirmation  of
book-entry  transfer  (a  "Book-Entry  Confirmation") of  such  Shares  into the
Depositary's account  at  The  Depository  Trust  Company  or  the  Philadelphia
Depository   Trust  Company   (each,  a   "Book-Entry  Transfer   Facility"  and
collectively, the "Book-Entry Transfer  Facilities") pursuant to the  procedures
set  forth  in Section  4,  a properly  completed  and duly  executed  Letter of
Transmittal (or a  manually signed  facsimile thereof) and  any other  documents
required by the Letter of Transmittal.
 
                                       4
<PAGE>
    For  purposes of the Offer,  the Purchaser shall be  deemed to have accepted
for payment  (and  thereby  purchased)  tendered Shares  as,  if  and  when  the
Purchaser  gives oral  or written  notice to  the Depositary  of the Purchaser's
acceptance of such Shares for payment pursuant to the Offer. Payment for  Shares
purchased  pursuant to the Offer  will be made by  deposit of the purchase price
with the Depositary, which will act as agent for tendering shareholders for  the
purpose  of receiving  payment from the  Purchaser and  transmitting payments to
tendering shareholders. The Purchaser will not, under any circumstances, pay any
interest on the purchase price, regardless of any delay in making such payment.
 
    If any  tendered Shares  are not  purchased  pursuant to  the Offer,  or  if
certificates  are submitted for more Shares  than are tendered, certificates for
such unpurchased  Shares will  be  returned, without  expense to  the  tendering
shareholder (or, in the case of book-entry transfer within a Book-Entry Transfer
Facility,  such Shares  will be  credited to  an account  maintained within such
Book-Entry Transfer Facility), as promptly  as practicable after the  expiration
or termination of the Offer.
 
    The  Purchaser  will pay  all  stock transfer  taxes,  if any,  payable with
respect to the transfer  to it of  Shares purchased pursuant  to the Offer.  If,
however,  payment  of  the  purchase  price  is  to  be  made  to,  or  (in  the
circumstances permitted by the Offer) if unpurchased Shares are to be registered
in the name  of, any person  other than  the registered holder,  or if  tendered
certificates  are registered  in the  name of any  person other  than the person
signing any  Letter of  Transmittal,  the amount  of  any stock  transfer  taxes
(whether  imposed  on the  registered holder  or such  other person)  payable on
account of such payment  or transfer to  such person will  be deducted from  the
purchase  price unless  satisfactory evidence of  the payment of  such taxes, or
exemption therefrom, is submitted.
 
    The Purchaser expressly reserves the right  to transfer or assign to  Varlen
or  to one or more of Varlen's  direct or indirect wholly owned subsidiaries the
right to purchase  all or any  portion of  the Shares tendered  pursuant to  the
Offer,  but no  such transfer  or assignment will  relieve the  Purchaser of its
obligations under the Offer or prejudice the rights of tendering shareholders to
receive payment for Shares validly tendered and accepted for payment pursuant to
the Offer.
 
    If, prior to the  Expiration Date, the Purchaser  shall decide, in its  sole
discretion,  to increase the  consideration offered to  shareholders pursuant to
the Offer, such increased consideration shall  be paid to all holders of  Shares
accepted for payment and paid for pursuant to the Offer.
 
    3.  WITHDRAWAL RIGHTS.  Tenders of Shares made pursuant to the Offer will be
irrevocable,  except that Shares tendered may be  withdrawn at any time prior to
the Expiration Date  and, unless previously  accepted for payment,  may also  be
withdrawn  after August 18, 1996. If the  Purchaser is delayed in its acceptance
or purchase of or payment for Shares or is unable to purchase or pay for  Shares
for any reason, then, without prejudice to the Purchaser's rights under Sections
1, 13 and 16, tendered Shares may be retained by the Depositary on behalf of the
Purchaser  and may not  be withdrawn except  as permitted by  this Section 3 and
subject to Rule 14e-1(c) under the Exchange Act. See Section 16.
 
    For a withdrawal to be effective, a written or facsimile transmission notice
of withdrawal must be timely received by the Depositary at one of its  addresses
specified  on  the back  cover of  this Offer  to Purchase.  Any such  notice of
withdrawal must specify the  name of the  person who tendered  the Shares to  be
withdrawn,   the  number  of  Shares  to   be  withdrawn  and,  if  certificates
representing such  Shares have  been delivered  or otherwise  identified to  the
Depositary,  the name(s)  in which such  certificate(s) is  (are) registered, if
different from the  name of the  person tendering such  Shares. If  certificates
have been delivered or otherwise identified to the Depositary, then prior to the
physical  release  of such  certificates,  the tendering  shareholder  must also
submit the serial numbers shown  on the particular certificates evidencing  such
Shares  and the signature  on the notice  of withdrawal must  be guaranteed by a
member firm  of a  registered  national securities  exchange,  a member  of  the
National  Association of  Securities Dealers, Inc.,  a commercial  bank or trust
company having an office,  branch or agency  in the United  States or any  other
institution  that is a member of  the Medallion Signature Guaranty Program (each
being  referred   to   herein  as   an   "Eligible  Institution").   If   Shares
 
                                       5
<PAGE>
have  been tendered pursuant to the procedure for book-entry tender as set forth
in Section  4,  the notice  of  withdrawal must  specify  the name  and  account
number(s) of the account(s) at the applicable Book-Entry Transfer Facility to be
credited with the withdrawn Shares, in which case a notice of withdrawal will be
effective  if delivered to the Depositary by any method of delivery described in
the first sentence of this paragraph. None of Varlen, the Purchaser, the  Dealer
Manager,  the  Depositary or  the Information  Agent will  be obligated  to give
notice of any defects or irregularities  in any notice of withdrawal, nor  shall
any  of  them incur  any  liability for  failure to  give  any such  notice. All
questions as to the form and validity (including time of receipt) of notices  of
withdrawal  will be determined  by the Purchaser, in  its sole discretion, whose
determination shall be final and binding.
 
    Withdrawals of Shares tendered may not be rescinded, and any Shares properly
withdrawn will thereafter  be deemed not  validly tendered for  purposes of  the
Offer.  Withdrawn Shares,  however, may  be retendered  by following  one of the
procedures described in Section 4 at any time prior to the Expiration Date.
 
    4.  PROCEDURES FOR ACCEPTING THE OFFER AND TENDERING SHARES.
 
    VALID TENDER.   In order for  a holder  of Shares to  validly tender  Shares
pursuant  to  the  Offer,  a  properly completed  and  duly  executed  Letter of
Transmittal (or a manually signed facsimile thereof), together with any required
signature  guarantees  and  any  other  documents  required  by  the  Letter  of
Transmittal,  must be  received by  the Depositary at  one of  its addresses set
forth on the back cover of this Offer to Purchase, on or prior to the Expiration
Date. Either  (i) the  certificates for  such Shares  must be  delivered to  the
Depositary  or (ii) such Shares  must be tendered pursuant  to the procedure for
book-entry transfer  set  forth below  and  a Book-Entry  Confirmation  must  be
received  by the Depositary (including an Agent's Message (as defined below), if
the tendering shareholder has  not delivered a Letter  of Transmittal), in  each
case  on or prior to the Expiration  Date. Delivery of documents to a Book-Entry
Transfer Facility does not constitute delivery to the Depositary. Alternatively,
the tendering shareholder may comply with the guaranteed delivery procedure  set
forth  below.  The  term "Agent's  Message"  means  a message  transmitted  by a
Book-Entry Transfer Facility  to and received  by the Depositary  and forming  a
part  of a Book-Entry  Confirmation, which states  that such Book-Entry Transfer
Facility has  received an  express  acknowledgement from  a participant  in  the
system  established by  such Book-Entry  Transfer Facility  tendering the Shares
which are the subject of such Book-Entry Confirmation that such participant  has
received  and agrees to be  bound by the terms of  the Letter of Transmittal and
that  the  Purchaser  may  enforce  such  Letter  of  Transmittal  against  such
participant.
 
    BOOK-ENTRY  TRANSFER.  The Depositary will establish an account with respect
to the Shares  at each Book-Entry  Transfer Facility for  purposes of the  Offer
within  two business  days after  the date  of this  Offer to  Purchase, and any
financial institution that is a participant in a Book-Entry Transfer  Facility's
system  may make  book-entry transfer  of the  Shares by  causing the Book-Entry
Transfer Facility  to transfer  such  Shares into  the Depositary's  account  in
accordance with such Book-Entry Transfer Facility's procedure for such transfer.
Even  if delivery of Shares  is to be effected  through book-entry transfer at a
Book-Entry Transfer Facility, the  Letter of Transmittal  (or a manually  signed
facsimile  thereof) along with  any required signature  guarantees and any other
required documents, or an Agent's Message,  must be transmitted to and  received
by  the Depositary at one of  its addresses set forth on  the back cover page of
this Offer to Purchase on  or prior to the  Expiration Date, or the  shareholder
must comply with the guaranteed delivery procedure set forth below.
 
    SIGNATURE  GUARANTEES.    If the  Letter  of  Transmittal is  signed  by the
registered holder of  the Shares tendered  therewith and payment  is to be  made
directly to such registered holder, or if Shares are tendered for the account of
an Eligible Institution, no signature guarantee is required. In all other cases,
signatures  on  the Letter  of  Transmittal must  be  guaranteed by  an Eligible
Institution. If certificates are registered in  the name of a person other  than
the  signer  of the  Letter  of Transmittal,  or  if payment  is  to be  made or
certificates for  Shares not  accepted for  payment or  not tendered  are to  be
returned to a person other than the registered holder, then certificates must be
endorsed or
 
                                       6
<PAGE>
accompanied  by appropriate stock  powers, in either case  signed exactly as the
name or the names of the registered owner or owners appear on certificates, with
the signature(s) on the  certificates or stock  powers guaranteed as  aforesaid.
See Instructions 1 and 5 of the Letter of Transmittal.
 
    GUARANTEED  DELIVERY.  If a shareholder desires to tender Shares pursuant to
the Offer and such holder's certificates are not immediately available, or  time
will  not permit all required  documents to reach the  Depositary on or prior to
the Expiration  Date,  or  the  procedure  for  book-entry  transfer  cannot  be
completed  on a timely basis, such Shares may nevertheless be tendered if all of
the following conditions are met:
 
        (i) such tenders are made by or through an Eligible Institution;
 
        (ii) a  properly  completed  and  duly  executed  Notice  of  Guaranteed
    Delivery  substantially in the form provided by the Purchaser is received by
    the Depositary as provided below by the Expiration Date; and
 
       (iii) the  certificates  for  all  tendered Shares  in  proper  form  for
    transfer  (or a Book-Entry Confirmation), together with a properly completed
    and duly  executed Letter  of Transmittal  (or a  manually signed  facsimile
    thereof)  with  any required  signature  guarantee and  any  other documents
    required by the Letter of Transmittal,  or an Agent's Message, are  received
    by  the Depositary within three  National Association of Securities Dealers,
    Inc. Automated Quotation System trading days after the date of execution  of
    such Notice of Guaranteed Delivery.
 
    The  Notice  of Guaranteed  Delivery may  be  delivered by  hand, or  may be
transmitted by facsimile transmission,  or by mail, to  the Depositary and  must
include  a guarantee  by an Eligible  Institution in  the form set  forth in the
Notice of Guaranteed Delivery.
 
    In all cases,  payment for  Shares tendered  and purchased  pursuant to  the
Offer  will be made only after timely  receipt by the Depositary of certificates
for such Shares (or a timely Book-Entry Confirmation), a properly completed  and
duly executed Letter of Transmittal (or a manually signed facsimile thereof) and
any other documents required by the Letter of Transmittal.
 
    OTHER  REQUIREMENTS.   By  executing a  Letter of  Transmittal as  set forth
above, a tendering shareholder irrevocably  appoints designees of the  Purchaser
as  his proxies, in  the manner set forth  in the Letter  of Transmittal, to the
full extent of such shareholder's rights with respect to the Shares tendered  by
such  shareholder and purchased by  the Purchaser (and any  and all other Shares
and other securities issued or issuable in respect thereof on or after June  15,
1996)  prior  to the  time of  any shareholder  vote or  other action.  All such
proxies shall  be irrevocable  and  coupled with  an  interest in  the  tendered
Shares.  Such appointment will be  effective when, and only  to the extent that,
the Purchaser accepts such Shares for payment. Upon such appointment, all  prior
proxies given by such shareholder with respect to such purchased Shares or other
securities will be revoked and no subsequent proxies may be given. The designees
of  the Purchaser  will, with  respect to such  Shares and  other securities, be
empowered to exercise all voting and  other rights of such shareholder as  they,
in  their sole discretion, may  deem proper at any  annual, special or adjourned
meeting of  the Company's  shareholders, by  written consent  or otherwise.  The
Purchaser  reserves the right to require that, in order for Shares to be validly
tendered, immediately  upon  the acceptance  for  payment of  such  Shares,  the
Purchaser  be able  to exercise  full voting  and other  rights of  a record and
beneficial holder, including  rights in  respect of acting  by written  consent,
with  respect to  such Shares  (and any  and all  other securities  as set forth
above).
 
    THE METHOD  OF  DELIVERY OF  ALL  DOCUMENTS, INCLUDING  DELIVERY  THROUGH  A
BOOK-ENTRY  TRANSFER  FACILITY, IS  AT THE  ELECTION AND  RISK OF  THE TENDERING
SHAREHOLDER. IF  DELIVERY IS  TO BE  BY MAIL,  INSURED REGISTERED  MAIL,  RETURN
RECEIPT  REQUESTED  IS  RECOMMENDED.  AMPLE  TIME  SHOULD  BE  ALLOWED  FOR SUCH
DOCUMENTS TO REACH THE DEPOSITARY. EXCEPT AS OTHERWISE PROVIDED IN THIS  SECTION
4, DELIVERY WILL BE DEEMED MADE ONLY WHEN ACTUALLY RECEIVED BY THE DEPOSITARY.
 
                                       7
<PAGE>
    BACK-UP  FEDERAL INCOME TAX WITHHOLDING.  Under the federal income tax laws,
the Depositary will be required  to withhold 31% of  the amount of any  payments
made  to  certain shareholders  pursuant to  the Offer.  To prevent  such backup
federal  income  tax  withholding,  each  such  shareholder  must  provide   the
Depositary with his correct taxpayer identification number and certify that such
shareholder  is  not  subject  to  such  backup  withholding  by  completing the
Substitute Form W-9 included in the Letter of Transmittal.
 
    DETERMINATION OF  VALIDITY.    All  questions  as  to  the  validity,  form,
eligibility (including time of receipt) and acceptance for payment of any tender
of  Shares  will  be determined  by  the  Purchaser and  Varlen,  in  their sole
discretion, whose determination  will be  final and binding.  The Purchaser  and
Varlen  reserve the absolute  right to reject  any or all  tenders determined by
them not to be in proper form or the acceptance of or payment for which may,  in
the  opinion of the  Purchaser's counsel, be unlawful.  The Purchaser and Varlen
also reserve the absolute right to waive  any of the conditions of the Offer  or
any defect in any tender with respect to any particular Shares or any particular
shareholder.  No tender of Shares will be deemed to have been validly made until
all defects and irregularities relating thereto have been cured or waived.  None
of  Varlen, the Purchaser, the Dealer Manager, the Depositary or the Information
Agent will  be obligated  to give  notice of  any defects  or irregularities  in
tenders,  nor shall any of them incur any liability for failure to give any such
notice. The Purchaser's and Varlen's interpretation of the terms and  conditions
of the Offer (including the Letter of Transmittal and instructions thereto) will
be final and binding.
 
    5.    CERTAIN INCOME  TAX  CONSEQUENCES.   The  receipt of  cash  for Shares
pursuant to the Offer or for Shares  pursuant to the Merger will be taxable  for
federal  income tax purposes  and may be taxable  under applicable state, local,
foreign and  other tax  laws. The  tax  consequences of  such receipt  may  vary
depending  upon,  among  other  things,  the  particular  circumstances  of  the
shareholder. In general, a shareholder will recognize gain or loss equal to  the
difference between the amount of cash received and his tax basis for his Shares.
Such  gain or  loss will generally  be capital  gain or loss  provided that such
shareholder held his Shares  as a capital asset,  and will be long-term  capital
gain  or loss if, on the  date of sale, such Shares  were held for more than one
year. Otherwise, such gain or loss will be short-term capital gain or loss.
 
    The foregoing  may not  be  applicable to  shareholders who  acquired  their
Shares  pursuant  to the  exercise  of employee  stock  options or  otherwise as
compensation or who are not  citizens or residents of  the United States or  who
are  otherwise subject to special tax  treatment under the Internal Revenue Code
of 1986, as amended (such as  life insurance companies, tax exempt entities  and
regulated investment companies).
 
    THE  FEDERAL INCOME TAX  DISCUSSION SET FORTH ABOVE  IS INCLUDED FOR GENERAL
INFORMATION ONLY. EACH SHAREHOLDER IS URGED  TO CONSULT HIS OWN TAX ADVISORS  TO
DETERMINE  PARTICULAR  TAX CONSEQUENCES  OF  THE OFFER  AND  THE MERGER  TO SUCH
SHAREHOLDER, INCLUDING THE EFFECT AND APPLICABILITY OF STATE, LOCAL, FOREIGN AND
OTHER TAX LAWS.
 
                                       8
<PAGE>
    6.   MARKET PRICES  OF SHARES;  DIVIDENDS.   The Shares  are traded  in  the
over-the-counter  market, under the symbol "BREN."  The Shares are quoted in the
National Association of  Securities Dealers, Inc.  ("NASD") Automated  Quotation
System  ("NASDAQ") National Market  System. The following  table sets forth, for
the calendar periods  shown, the  range of  high and  low sales  prices for  the
Shares  as quoted in the NASDAQ National Market System for such periods, in each
case as reported by published financial  sources, and the cash dividend paid  by
the  Company for  each such  quarter. NASDAQ  National Market  System quotations
reflect inter-dealer prices,  without retail mark-up,  mark-down or  commission,
and do not necessarily reflect actual transactions.
 
<TABLE>
<CAPTION>
                                                                          QUARTERLY
                                                     HIGH       LOW       DIVIDEND
                                                   --------   --------   -----------
<S>      <C>                                       <C>        <C>        <C>
YEAR ENDED DECEMBER 31, 1994
  1st    Quarter.................................  $12 1/2    $ 8 1/4     $     .05
  2nd    Quarter.................................   13 1/4      9 1/8           .05
  3rd    Quarter.................................   14         11 1/2           .06
  4th    Quarter.................................   13 1/4     11 1/4           .06
YEAR ENDED DECEMBER 31, 1995
  1st    Quarter.................................  $13        $10 5/8     $     .06
  2nd    Quarter.................................   14 1/4     12               .07
  3rd    Quarter.................................   12 5/8      9 3/16          .07
  4th    Quarter.................................   12         10 1/8           .07
YEAR ENDING DECEMBER 31, 1996
  1st    Quarter.................................  $12 13/16  $ 9         $     .07
  2nd    Quarter (through June 19, 1996).........   16 1/4     12 1/8        --
</TABLE>
 
    On  June 14, 1996, the last full day of trading prior to the announcement of
the Purchaser's intention to  make the Offer, the  last reported sale price  for
the  Shares, as reported  in the NASDAQ  National Market System,  was $12.25 per
Share, according to published sources. SHAREHOLDERS ARE URGED TO OBTAIN  CURRENT
MARKET QUOTATIONS FOR THE SHARES.
 
    7.   CERTAIN EFFECTS OF  THE OFFER.  The purchase  of Shares pursuant to the
Offer will reduce the number of  Shares that might otherwise trade publicly  and
may  also be expected to reduce the number of holders of Shares. Such reductions
could adversely affect the  liquidity and market value  of the remaining  Shares
held by the public.
 
    NASDAQ  QUOTATION.  Depending on the  number of Shares purchased pursuant to
the Offer,  the Shares  may no  longer meet  the requirements  of the  NASD  for
continued inclusion in the NASDAQ National Market System (the top tier market of
The  NASDAQ Stock Market),  which require that  an issuer have  at least 200,000
publicly held shares, held by at  least 400 shareholders or 300 shareholders  of
round  lots, with a market value of  $1,000,000, and have net tangible assets of
at least either $1,000,000, $2,000,000 or $4,000,000, depending on profitability
levels during the issuer's four most recent fiscal years. If these standards are
not met, the  Shares might nevertheless  continue to be  included in the  NASD's
NASDAQ  Stock Market, with quotations published  in the NASDAQ "additional list"
or in one of the "local lists", but if the number of holders of the Shares  were
to  fall below 300, or if the number  of publicly held Shares were to fall below
100,000 or there were not at least  two registered and active market makers  for
the  Shares,  the  NASD's rules  provide  that  the Shares  would  no  longer be
"qualified"  for  NASDAQ  reporting  and  NASDAQ  would  cease  to  provide  any
quotations.  Shares  held  directly  or  indirectly  by  directors,  officers or
beneficial owners of more  than 10% of  the Shares are  not considered as  being
publicly  held  for this  purpose. If,  as a  result of  the purchase  of Shares
pursuant to the Offer, the  Shares no longer meet  the requirements of the  NASD
for continued inclusion in The NASDAQ Stock Market or the NASDAQ National Market
System, as the case may be, the market for Shares could be adversely affected.
 
    In the event that the Shares no longer meet the requirements of the NASD for
quotation  through NASDAQ and  the Shares are  no longer included  in The NASDAQ
Stock Market, it  is possible that  the Shares  would continue to  trade in  the
over-the-counter market and that price quotations would be
 
                                       9
<PAGE>
reported  by other sources. The  extent of the public  market for the Shares and
the availability of such  quotations would, however, depend  upon the number  of
holders  of Shares remaining at such time, the interests in maintaining a market
in Shares  on  the  part  of  securities  firms,  the  possible  termination  of
registration of the Shares under the Exchange Act, as described below, and other
factors.  The Purchaser  has been advised  by the  Company that, as  of June 15,
1996, there were approximately 1,951 record holders of Shares.
 
    EXCHANGE ACT REGISTRATION.   The Shares are  currently registered under  the
Exchange  Act.  Such  registration may  be  terminated upon  application  of the
Company to  the Securities  and Exchange  Commission (the  "Commission") if  the
Shares are not listed on a national securities exchange and there are fewer than
300  record holders of  Shares. Termination of registration  of the Shares under
the Exchange  Act would  substantially  reduce the  information required  to  be
furnished  by the Company to its shareholders  and the Commission and would make
certain provisions of the Exchange Act (such as the short-swing profit  recovery
provisions  of  Section  16(b) and  the  requirement  of furnishing  a  proxy or
information statement  in connection  with  shareholders' meetings  pursuant  to
Section  14(a) or (c) and the related requirement of an annual report) no longer
applicable to  the Company.  Furthermore,  the ability  of "affiliates"  of  the
Company and persons holding "restricted securities" of the Company to dispose of
such  securities  pursuant  to  Rule  144 or  Rule  144A  promulgated  under the
Securities Act of 1933, as amended, may be impaired or, with respect to  certain
persons,  eliminated. If,  as a  result of  purchases pursuant  to the  Offer or
otherwise, the Company  is no longer  required to maintain  registration of  the
Shares  under the Exchange  Act, the Purchaser  intends to cause  the Company to
apply for termination of such registration. See Section 11.
 
    MARGIN REGULATIONS.  The Shares are presently "margin securities" under  the
rules  of the  Board of  Governors of the  Federal Reserve  System (the "Federal
Reserve Board"), which has the effect,  among other things, of allowing  brokers
to extend credit on the collateral of such securities for the purpose of buying,
carrying  or  trading in  securities ("Purpose  Loans"). In  the event  that the
Shares were no longer quoted in the NASDAQ National Market System (which depends
on factors such as the number of holders of the Shares and the number and market
value of publicly-held Shares (see NASDAQ QUOTATION above)), the Shares would no
longer constitute  "margin  securities"  for purposes  of  the  Federal  Reserve
Board's margin regulations and, therefore, could no longer be used as collateral
for  Purpose Loans made by  brokers. In addition, if  registration of the Shares
under the Exchange Act  were terminated, the Shares  would no longer  constitute
"margin securities."
 
    RULE  13E-3.  The Commission has adopted  Rule 13e-3 under the Exchange Act,
which is applicable to certain "going private" transactions and which may  under
certain  circumstances  be  applicable  to  the  Merger  or  other  transactions
following the purchase of  Shares pursuant to the  Offer in which the  Purchaser
seeks  to acquire the remaining shares not held by it. However, Rule 13e-3 would
be inapplicable if (i) the Shares are deregistered under the Exchange Act  prior
to  the Merger  or other  transactions or  (ii) the  Merger or  another business
combination is consummated  within one  year after  the purchase  of the  Shares
pursuant  to the Offer and the amount paid  per Share for each class of Share in
the Merger or other business  combination is at least  equal to the amount  paid
per  Share  for such  class of  Share in  the Offer.  If applicable,  Rule 13e-3
requires, among other things, that certain financial information concerning  the
fairness  of the proposed transaction and  the consideration offered to minority
shareholders in such transaction be filed  with the Commission and disclosed  to
shareholders prior to the consummation of the transaction.
 
    8.   CERTAIN INFORMATION CONCERNING THE COMPANY.   The Company is a Virginia
corporation with  its  principal executive  offices  located at  One  Park  West
Circle,  Midlothian,  Virginia  23113, telephone  (804)  794-1436.  According to
information filed by the Company with  the Commission, the Company is  primarily
engaged  in  the  manufacture,  sale  and  servicing  of  roller  bearings;  the
manufacture and  sale  of automotive  forgings;  the provision  of  third  party
railcar switching services; and the operation of short-line railroads.
 
                                       10
<PAGE>
    Set  forth below is a summary of certain selected financial information with
respect to the Company and its subsidiaries for the fiscal years ended  December
31,  1995,  December 31,  1994 and  December  31, 1993  and for  the three-month
periods ended March 31,  1996 and March  31, 1995, which  has been excerpted  or
derived  from  the audited  consolidated financial  statements contained  in the
Company's Annual Reports on  Form 10-K for the  fiscal years ended December  31,
1995 and December 31, 1994, and from unaudited consolidated financial statements
contained  in the Company's Quarterly Report on  Form 10-Q for the quarter ended
March 31, 1996.  More comprehensive  financial information is  included in  such
reports  and other documents filed  by the Company with  the Commission, and the
following summary is qualified  in its entirety by  reference to such  documents
and all of the financial statements and related notes contained therein.
 
                              BRENCO, INCORPORATED
                         SELECTED FINANCIAL INFORMATION
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                       THREE MONTHS ENDED
                                                           MARCH 31,          FISCAL YEAR ENDED DECEMBER 31,
                                                      --------------------  -----------------------------------
                                                        1996       1995        1995         1994        1993
                                                      ---------  ---------  -----------  -----------  ---------
                                                          (UNAUDITED)
<S>                                                   <C>        <C>        <C>          <C>          <C>
INCOME STATEMENT DATA:
  Net sales.........................................  $  32,875  $  35,232  $   127,139  $   117,897  $  98,724
  Costs and expenses................................     28,825     29,224      110,177      102,727     89,413
  Interest expense..................................        178        214          723          799        741
  Income before income taxes........................      4,123      5,979       16,909       14,555      6,893
  Net income........................................      2,571      3,640       10,660        8,802      4,241
  Earnings per share:
    Net income per share............................        .25        .36         1.05          .88        .43
    Average shares outstanding......................     10,189     10,102       10,135       10,050      9,942
BALANCE SHEET DATA:
  Current assets....................................  $  56,780  $  49,171  $    49,520  $    41,968  $  36,900
  Total assets......................................     93,041     84,743       86,278       76,569     69,629
  Current liabilities...............................     11,962     12,297        8,438        7,530      8,312
  Long-term debt....................................      8,184      9,540        8,212        9,567     10,000
  Shareholders' equity..............................     66,134     58,777       63,999       55,498     48,289
</TABLE>
 
    CERTAIN  COMPANY  PROJECTIONS.    Prior  to  entering  into  the Acquisition
Agreement, Varlen  conducted  a due  diligence  review  of the  Company  and  in
connection  with such review received  certain non-public business and financial
information from  the  Company including  summary  business plans  comprised  of
income,  balance sheet  and cash  flow statements,  financial plans  and certain
historical data  detailing sales,  costs and  expenses and  balance sheet  data.
Certain  projected information included in the non-public business and financial
records of the  Company included  that (i)  net sales  for the  Company for  the
fiscal  years ending December 31, 1996  through 1998 would be approximately $125
million, $124 million and $130 million, respectively and (ii) net income for the
Company for the  fiscal years  ending December 31,  1996 through  1998 would  be
approximately  $9.6 million, $9.7 million  and $10.3 million, respectively. None
of the  assumptions which  form the  basis for  the projected  information  give
effect  to  the Offer,  the Merger  or  the financing  thereof or  the potential
combined operations  of  Varlen  and  the Company  after  consummation  of  such
transactions.
 
    THE  COMPANY  HAS  ADVISED THAT  THE  ABOVE PROJECTIONS  AND  FORECASTS WERE
PREPARED FOR INTERNAL PURPOSES ONLY, WERE NOT PREPARED WITH A VIEW TO COMPLIANCE
WITH THE  COMMISSION'S PUBLISHED  GUIDELINES FOR  DISCLOSURE OF  FORWARD-LOOKING
INFORMATION OR THE GUIDELINES ESTABLISHED BY THE AMERICAN INSTITUTE OF CERTIFIED
PUBLIC  ACCOUNTANTS  REGARDING PROJECTIONS,  AND  WERE NOT  INTENDED  FOR PUBLIC
DISSEMINATION. THE FOREGOING PROJECTIONS AND FORECASTS ARE NECESSARILY BASED  ON
ASSUMPTIONS AS TO FACTS WHICH ARE NOT WITHIN THE COMPANY'S CONTROL. NO ASSURANCE
CAN   BE  GIVEN   THAT  SUCH   PROJECTIONS  OR   FORECASTS  WILL   PROVE  TO  BE
 
                                       11
<PAGE>
ACCURATE TO ANY EXTENT AND NONE OF VARLEN, THE PURCHASER, THE COMPANY OR ANY  OF
THEIR  RESPECTIVE  ADVISORS OR  ANY OTHER  PARTY  WHO RECEIVED  SUCH INFORMATION
ASSUMES ANY RESPONSIBILITY FOR  THE ACCURACY OF  SUCH PROJECTIONS OR  FORECASTS.
VARLEN  AND THE  PURCHASER HAVE INCLUDED  SUCH PROJECTIONS  AND FORECASTS HEREIN
ONLY BECAUSE VARLEN WAS PROVIDED THEM PRIOR TO THE EXECUTION OF THE  ACQUISITION
AGREEMENT.  ALTHOUGH PRESENTED WITH NUMERICAL SPECIFICITY, THESE PROJECTIONS AND
FORECASTS ARE BASED UPON A VARIETY OF ASSUMPTIONS RELATING TO THE BUSINESSES  OF
THE   COMPANY  WHICH  MAY  NOT  BE  REALIZED  AND  ARE  SUBJECT  TO  SIGNIFICANT
UNCERTAINTIES AND CONTINGENCIES,  MANY OF WHICH  ARE BEYOND THE  CONTROL OF  THE
COMPANY.  THERE CAN BE NO ASSURANCE THAT THE PROJECTIONS AND FORECASTS SET FORTH
ABOVE WILL BE REALIZED, AND ACTUAL RESULTS MAY VARY MATERIALLY FROM THOSE SHOWN.
THE PROJECTIONS  AND  FORECASTS  HAVE  NOT BEEN  EXAMINED  OR  COMPILED  BY  THE
COMPANY'S  INDEPENDENT PUBLIC ACCOUNTANTS. THE INCLUSION OF SUCH PROJECTIONS AND
FORECASTS HEREIN  SHOULD NOT  BE  REGARDED AS  AN  INDICATION THAT  VARLEN,  THE
PURCHASER,  THE COMPANY, ANY OF THEIR RESPECTIVE ADVISORS OR ANY OTHER PARTY WHO
RECEIVED SUCH INFORMATION CONSIDERS IT AN ACCURATE PREDICTION OF FUTURE EVENTS.
 
    Except where  otherwise  stated,  the  information  concerning  the  Company
contained in this Offer to Purchase or incorporated herein by reference has been
taken  from or based upon publicly-available  documents and records on file with
the Commission and other public sources or was provided by the Company. Although
the Purchaser has no knowledge that would indicate that any statements contained
herein based on such  documents and records are  untrue, neither Varlen nor  the
Purchaser  can  take  responsibility for  the  accuracy or  completeness  of the
information contained in such documents and  records, or for any failure by  the
Company   to  disclose  events  which  may  have  occurred  or  may  affect  the
significance or accuracy of any such information which are unknown to Varlen  or
the Purchaser.
 
    The  Company is subject to the information and reporting requirements of the
Exchange Act and in accordance therewith is obligated to file reports and  other
information  with the Commission  relating to its  business, financial condition
and other matters. Information, as of particular dates, concerning the Company's
business, principal  physical properties,  capital structure,  material  pending
legal   proceedings,  operating  results,  financial  condition,  the  Company's
directors and officers, their remuneration,  stock options and restricted  stock
granted to them, the principal holders of the Company's securities, any material
interests of such persons in transactions with the Company and other matters, is
required  to be disclosed in proxy  statements and annual reports distributed to
the Company's shareholders and  filed with the  Commission. Such reports,  proxy
statements  and other  information may be  inspected at  the Commission's public
reference facilities  at 450  Fifth Street,  N.W., Washington,  D.C. 20549,  and
should also be available for inspection at the following regional offices of the
Commission:  7 World Trade Center, Suite 1300, New York, New York 10048; and 500
West Madison Street,  Suite 1400,  Chicago, Illinois  60661; and  copies may  be
obtained,  by  mail,  for prescribed  rates  from  the principal  office  of the
Commission at 450 Fifth Street,  N.W., Washington, D.C. 20549. Such  information
should  also be  available for inspection  at the offices  of NASDAQ Operations,
1735 K Street, N.W., Washington, D.C. 20006.
 
    9.  CERTAIN INFORMATION CONCERNING THE PURCHASER AND VARLEN.  The  Purchaser
is  a newly incorporated  Virginia corporation and a  wholly owned subsidiary of
Varlen. To date, the Purchaser has engaged in no activities other than those  in
connection  with the Offer. The principal executive offices of the Purchaser and
Varlen are located at 55 Shuman Boulevard, P.O. Box 3089, Naperville,  Illinois,
60566-7089, telephone (708) 420-0400.
 
    The  name, business  address, citizenship,  present principal  employment or
occupation and  employment  history for  the  past five  years  of each  of  the
directors  and executive officers of  the Purchaser and Varlen  are set forth in
Schedule A to this Offer to Purchase.
 
    Varlen, a Delaware corporation, was formed in 1969. Varlen is a manufacturer
of (i) aluminum permanent  mold and die castings  and structural molded  plastic
components   for  trucks  and   trailers;  (ii)  components   for  railcars  and
locomotives; (iii) remanufactured crankshafts  and camshafts and railroad  track
fastener  systems; (iv) automatic transmission  reaction plates, steering column
and
 
                                       12
<PAGE>
transmission  components,  seat  frame  brackets  and  precision  stamped  metal
components  and  weldments for  cars and  light trucks;  and (v)  instruments to
improve yield, certify products and  monitor regulatory standards for  petroleum
products.
 
    Except  as  set  forth in  this  paragraph  or elsewhere  in  this  Offer to
Purchase, and except for  460,000 shares beneficially owned  by a subsidiary  of
Varlen,  neither the Purchaser nor  Varlen nor, to the  best of their knowledge,
any of the persons  listed in Schedule  A hereto nor  any associate or  majority
owned  subsidiary of any of  the foregoing, beneficially owns  or has a right to
acquire any  equity securities  of the  Company and  neither the  Purchaser  nor
Varlen  nor, to  the best  of their  knowledge, any  of the  persons or entities
referred to above, nor any director,  executive officer or subsidiary of any  of
the foregoing, has effected any transaction in such equity securities during the
past 60 days.
 
    Except  as set forth  in this Offer  to Purchase, neither  the Purchaser nor
Varlen nor, to the best of the knowledge of Varlen and the Purchaser, any of the
persons  listed  in   Schedule  A   hereto,  has   any  contract,   arrangement,
understanding  or  relationship (whether  or not  legally enforceable)  with any
other person with respect to any  securities of the Company, including, but  not
limited  to, any contract, arrangement, understanding or relationship concerning
the transfer or the voting  of any of such  securities, joint ventures, loan  or
option  arrangements,  puts or  calls, guarantees  of loans,  guarantees against
loss, or the giving or withholding of proxies. Except as set forth in this Offer
to Purchase, there  have been  no contacts, negotiations  or transactions  which
have  occurred since January 1,  1993, between Varlen, the  Purchaser, or any of
Varlen's other subsidiaries or, to the best  of the knowledge of Varlen and  the
Purchaser,  any of the persons listed in Schedule A hereto, on the one hand, and
the Company  or  its  affiliates,  on the  other  hand,  concerning:  a  merger,
consolidation or acquisition; a tender offer or other acquisition of securities;
an  election of directors; or  a sale or other transfer  of a material amount of
assets. Except as described in this Offer to Purchase, neither the Purchaser nor
Varlen nor, to the best of the knowledge of Varlen and the Purchaser, any of the
persons listed  in  Schedule  A  hereto,  has since  January  1,  1993  had  any
transaction  with the  Company or  any of  its executive  officers, directors or
affiliates which would require disclosure under the rules and regulations of the
Commission applicable to the Offer.
 
    Except as set forth in this Offer  to Purchase, during the last five  years,
neither the Purchaser nor Varlen nor, to the best of the knowledge of Varlen and
the Purchaser, any of the persons listed on Schedule A (i) has been convicted in
a criminal proceeding (excluding traffic violations and similar misdemeanors) or
(ii)  was a party to a civil proceeding  of a judicial or administrative body of
competent jurisdiction and as a result of such proceeding was or is subject to a
judgment, decree or final order  enjoining future violations of, or  prohibiting
activities subject to, Federal or state securities laws or finding any violation
of such laws.
 
    Until  immediately  prior to  the time  the  Purchaser purchases  the Shares
pursuant to the Offer, it  is not anticipated that  the Purchaser will have  any
significant  assets  or liabilities  or engage  in  activities other  than those
incident to its formation and  capitalization and the transactions  contemplated
by  the  Offer. Because  the Purchaser  is  a newly  formed corporation  and has
minimal assets and capitalization, no meaningful financial information regarding
the Purchaser is available.
 
    Varlen is  subject to  the  information and  reporting requirements  of  the
Exchange  Act and  in accordance therewith  is obligated to  file reports, proxy
statements and other information with  the Commission relating to its  business,
financial  condition  and other  matters. Information,  as of  particular dates,
concerning Varlen's business, principal physical properties, capital  structure,
material  pending  legal  proceedings, operating  results,  financial condition,
directors and executive officers, their  remuneration, stock options granted  to
them,  the principal holders of Varlen's securities and any material interest of
such persons in  transactions with Varlen  and other matters  is required to  be
disclosed  in  proxy  statements  and  annual  reports  distributed  to Varlen's
stockholders and filed with the  Commission. Such reports, proxy statements  and
other information may be examined, and copies
 
                                       13
<PAGE>
may  be obtained from the  Commission in the same manner  set forth in Section 8
with respect to information concerning the Company. Such information should also
be available for  inspection at  the offices of  the NASDAQ  Operations, 1735  K
Street, N.W., Washington, D.C. 20006.
 
    Set  forth below is  a summary of certain  selected financial information of
Varlen and its subsidiaries for the fiscal years ended January 31, 1996, January
31, 1995 and January 31, 1994 and for the three-month periods ended May 4,  1996
and  April  29, 1995,  which  has been  excerpted  or derived  from  the audited
consolidated financial statements  contained in Varlen's  Annual Report on  Form
10-K  for the fiscal years ended January 31,  1996 and January 31, 1995 and from
unaudited financial information contained in  the Company's Quarterly Report  on
Form  10-Q  for the  quarter  ended May  4,  1996. More  comprehensive financial
information is included in such reports and other documents filed by Varlen with
the Commission,  and the  following  summary is  qualified  in its  entirety  by
reference to such document and all of the financial statements and related notes
contained therein.
 
                               VARLEN CORPORATION
                         SELECTED FINANCIAL INFORMATION
                     (IN THOUSANDS, EXCEPT PER SHARE DATA)
 
<TABLE>
<CAPTION>
                                                     THREE MONTHS ENDED
                                                  ------------------------      FISCAL YEAR ENDED JANUARY 31,
                                                                APRIL 29,   -------------------------------------
                                                  MAY, 4 1996     1995         1996         1995         1994
                                                  -----------  -----------  -----------  -----------  -----------
                                                        (UNAUDITED)
<S>                                               <C>          <C>          <C>          <C>          <C>
INCOME STATEMENT DATA:
  Net sales.....................................  $    91,975  $   106,969  $   386,987  $   341,521  $   291,908
  Cost of sales.................................       68,178       79,611      290,052      260,469      221,988
  Selling, general and administrative
   expenses.....................................       14,254       15,289       57,762       50,436       45,087
  Interest expense, net.........................        1,053        1,173        4,467        4,762        6,110
  Income before income taxes....................        8,490       10,896       34,706       25,854       18,723
  Net earnings..................................        4,822        6,156       19,609       14,762       10,766
  Earnings per share*:
    Primary earnings per share..................          .79         1.01         3.19         2.44         1.80
    Fully diluted earnings per share............          .60          .75         2.43         1.92         1.57
  Average shares outstanding*:
    Primary.....................................        6,095        6,101        6,141        6,064        5,986
    Fully diluted...............................        9,159        9,166        9,199        9,136        8,062
BALANCE SHEET DATA:
  Current assets................................  $   112,008  $   119,118  $   111,514  $   111,535  $    84,575
  Total assets..................................      234,123      232,214      230,874      220,186      186,264
  Current liabilities...........................       44,201       57,734       44,470       53,822       35,529
  Long-term debt................................       73,403       72,790       73,398       72,788       72,698
  Shareholders' equity..........................      101,399       86,766       97,953       79,031       63,644
</TABLE>
 
- ------------------------
*Amounts  prior  to May  4, 1996  have been  restated for  a 10%  stock dividend
 declared on May 29, 1996 and payable on July 15, 1996.
 
    10.  BACKGROUND OF THE  OFFER.  On December  11, 1995, at Varlen's  request,
two  senior officers of Varlen, Richard L. Wellek, President and Chief Executive
Officer, and  Raymond A.  Jean,  Executive Vice  President and  Chief  Operating
Officer,  visited the Company's facilities in  Petersburg, Virginia and met with
Needham B. Whitfield, Chairman of the  Board of the Company and Chief  Executive
Officer,  J. Craig  Rice, President and  Chief Operating Officer,  and Howard J.
Bush, Vice  President --  Marketing. After  a presentation  by Mr.  Bush of  the
Company's markets and businesses, the Varlen executives were given a tour of the
manufacturing facilities, and afterwards a general discussion ensued. The Varlen
executives  pointed to a variety of changes in the railroad markets domestically
and internationally, and proposed that a large supplier, with a wide variety  of
products important to the
 
                                       14
<PAGE>
rail   industry,  would  be  better  positioned  to  deal  with  these  changing
conditions. The Varlen executives asked the Company if they would be  interested
in  combining  with Varlen  to form  such a  supplier. The  Company's executives
agreed to think  about the  proposition, and  to have  further discussions  with
Varlen.
 
    On  January 25, 1996, Mr. Wellek,  together with George W. Hoffman, Railroad
Group Vice President for Varlen, returned to Petersburg and resumed  discussions
with  Messrs. Whitfield,  Rice, and Bush.  A number of  marketing synergies were
identified between the two  companies, and both parties  agreed to explore  each
other's operations in greater depth.
 
    On  February  20, 1996,  Messrs Whitfield,  Rice  and Bush  visited Keystone
Industries, Inc.  in Camp  Hill,  Pennsylvania. Keystone  is a  manufacturer  of
railroad  equipment components and a wholly  owned subsidiary of Varlen. After a
tour of  the  facilities,  further discussions  about  operations  and  railroad
markets were conducted with Messrs. Wellek and Hoffman.
 
    On  February 21, 1996, Messrs. Whitfield  and Rice accompanied Mr. Wellek to
Vassar, Michigan to tour two automotive parts plants of a Varlen subsidiary  and
meet  local  managers  of  these  operations.  Business  philosophies, marketing
strategies, organizational culture and operating methods were discussed.
 
    On March 11,  1996, Mr.  Wellek visited Messrs.  Whitfield and  Rice at  the
Company's administrative headquarters in Midlothian, Virginia to discuss whether
there  was  enough fit  between  the two  companies  to explore  in  earnest the
possibility of  a business  combination. The  two companies  agreed to  continue
discussions.
 
    On  March 20,  1996, Messrs.  Wellek and  Jean met  Mr. Rice  and Keith Poe,
Executive Vice  President  of Quality  Bearing  Service ("QBS"),  the  Company's
wholly  owned reconditioning subsidiary, in Little  Rock, Arkansas to tour QBS's
newest reconditioning plant and discuss the reconditioning operations.
 
    On March 21, 1996, Messrs. Wellek and Jean, who were in Louisville, Kentucky
for an annual truck  show, made a  brief tour of  QBS's reconditioning plant  in
Louisville.
 
    On  March  27,  1996, Varlen  signed  a confidentiality  agreement  with the
Company providing for the transfer  of confidential information to Varlen  about
the  Company's operations and financial results, and holding Varlen subject to a
standstill provision in  the event  Varlen wished  to use  this information  for
purposes of, among other things, making a public tender for the Company shares.
 
    On  April 3, 1996,  Richard A. Nunemaker, Vice  President, Finance and Chief
Financial Officer  of  Varlen,  met  with Jacob  M.  Feichtner,  Executive  Vice
President  and Chief Financial Officer of  the Company, Mr. Whitfield and others
to determine  what financial  and  operating data  was  available to  begin  his
inquiries.
 
    On  April 10, 1996,  Messrs. Wellek, Jean, Hoffman,  Thomas A. Robinson, and
others visited the Company's facilities in Petersburg to conduct an  engineering
review  of  the Company's  new  bearing developments  and  its development  of a
one-way clutch for the automotive market. Mr. Rice and several of the  Company's
engineers were involved in the discussions.
 
    On  April  11, 1996,  Messrs. Wellek,  Jean, Hoffman  and Robinson  met with
Messrs. Rice, Whitfield, and James W.  Benz, President of Rail Link, a  contract
switching subsidiary wholly owned by the Company. A variety of railroad industry
and international sales issues were discussed.
 
    On  April 15,  1996, Mr.  Nunemaker and  Stephen E.  Obendorf, met  with Mr.
Feichtner and others to further discuss and review financial and operating  data
of  the Company.  On the  same date, Vicki  L. Casmere,  Vice President, General
Counsel and Secretary of Varlen, met with the Company's counsel in Richmond  and
later  with Messrs. Feichtner  and Whitfield in Midlothian  to conduct a general
review of legal matters related to the Company's operations.
 
                                       15
<PAGE>
    On May  7, 1996,  Mr. Wellek  met with  Messrs. Whitfield  and Rice  at  the
Company's Midlothian headquarters to review the status of Varlen's inquiries and
to  advise the Company's  executives that Varlen wished  to acquire the Company,
assuming the contract terms, timing and price were satisfactory to both parties.
There was a  general discussion as  to how  this process might  proceed and  Mr.
Wellek indicated the possible price range of a Varlen offer.
 
    On  May 29, 1996, Messrs. Whitfield and  Rice met with Messrs. Wellek, Jean,
Nunemaker, Robinson  and Ms.  Casmere at  Varlen's headquarters  in  Naperville,
Illinois.  Mr.  Whitfield  reported  the Company  Board's  response  to Varlen's
proposal and asked for definitive terms.
 
    On May  31, 1996,  Mr. Wellek  called Mr.  Whitfield and  informed him  that
Varlen  wished  to make  a cash  tender offer  for the  Shares and  assuming the
Company would cooperate by entering into an acquisition agreement, Varlen  would
submit a proposed draft of the agreement, which was done the following week. Mr.
Wellek  indicated that the final price offered  would depend on the terms of the
agreement.
 
    On June  11, 1996,  Mr. Wellek  and  Ms. Casmere  of Varlen,  together  with
Varlen's outside counsel, met with Messrs. Whitfield and Rice of the Company and
its  counsel and negotiated the basic terms  subject to approval of both boards.
Negotiations continued  over the  period  from June  11  to June  14  concerning
certain additional terms.
 
    At  the  June 13,  1996 Varlen  Board  of Directors'  meeting, the  Board of
Directors was updated on  the status of negotiations  relating to the Offer  and
the  proposed terms of the  relevant agreements. Mr. Bush  of the Company was in
attendance at the beginning of the meeting, made a presentation on the Company's
railroad bearing markets  and answered  questions by the  Varlen directors.  The
Board  of Directors then approved the  Acquisition Agreement and the Shareholder
Tender Agreement.
 
    The negotiations culminated  in the execution  of the Acquisition  Agreement
and  the Shareholder Tender  Agreement on Saturday,  June 15, 1996.  On June 17,
1996, Varlen  and the  Company, in  a joint  press release,  announced  Varlen's
intention to commence the Offer.
 
    11.    PURPOSE OF  THE  OFFER AND  THE MERGER;  PLANS  FOR THE  COMPANY; THE
ACQUISITION AGREEMENT AND SHAREHOLDER TENDER AGREEMENT.
 
    PURPOSE OF THE OFFER AND THE MERGER
 
    The purpose of  the Offer is  to facilitate  the acquisition of  all of  the
outstanding  Shares and thereby  to enable the Purchaser  to acquire control of,
and the entire equity interest in, the Company. The purpose of the Merger is  to
acquire  all outstanding Shares not tendered and purchased pursuant to the Offer
or acquired pursuant  to the Shareholder  Tender Agreement. The  Offer is  being
made pursuant to the Acquisition Agreement.
 
    No dissenter's rights are available in connection with the Offer. Holders of
Shares  may be entitled to dissenter's rights  in connection with the Merger if,
at the  record  date  with respect  to  the  meeting at  which  the  Acquisition
Agreement and the Merger will be acted upon, certain requirements are satisfied.
 
    Section  13.1-730  of the  Virginia  Act (as  effective  from July  1, 1996)
provides that no dissenter's rights are available for the shares of any class or
series of shares which, at the  record date fixed to determine the  shareholders
entitled  to receive notice of and to vote at the meeting of shareholders to act
upon the agreement  or plan  of merger,  were either  (i) listed  on a  national
securities  exchange  or  on  the  National  Association  of  Securities Dealers
Automated  Quotation  System  or  (ii)  held   of  record  by  at  least   2,000
shareholders, unless, among other things, in either case (i) the holders of such
class or series of shares are required by the terms of such agreement or plan to
accept  for such shares anything except cash or (ii) the transaction to be voted
on is an "affiliated transaction"  that has not been  approved by a majority  of
"disinterested directors." See Section 15.
 
    If the conditions of Section 13.1-730 of the Virginia Act are not met and if
the  Merger or  a similar  business combination  is consummated,  the holders of
Shares not purchased pursuant to the Offer
 
                                       16
<PAGE>
would have certain rights to dissent and  demand to be paid the "fair value"  of
their  Shares  under  the  Virginia  Act.  Under  the  Virginia  Act, dissenting
shareholders who comply with applicable  statutory procedures would be  entitled
to  payment of the "fair value" of the Shares as to which dissenter's rights are
properly claimed  as of  the time  immediately before  the effectuation  of  the
Merger  (excluding  any  appreciation  or depreciation  in  anticipation  of the
Merger, unless such exclusion would be inequitable). In the first instance,  the
"fair  value" estimation is made by the corporation. Dissatisfied dissenters may
then notify  the  corporation of  their  own  "fair value"  estimation.  If  the
corporation  and the dissatisfied shareholder cannot  settle on the amount owed,
the shareholder will ultimately be entitled to a judicial determination of "fair
value." Any such judicial determination of the "fair value" of the Shares  could
be  based upon considerations other than or in addition to the price paid in the
Offer and the market value of the Shares, including asset values, the investment
value of the Shares and any other valuation considerations generally accepted in
the investment community. The "fair value" of the Shares so determined could  be
more  or less than the price per Share to  be paid pursuant to the Offer and the
Merger.
 
    THE FOREGOING  SUMMARY OF  THE RIGHTS  OF DISSENTING  SHAREHOLDERS DOES  NOT
PURPORT  TO BE  COMPLETE. THE  EXERCISE AND  PRESERVATION OF  DISSENTER'S RIGHTS
REQUIRE STRICT ADHERENCE TO THE APPLICABLE PROVISIONS OF THE VIRGINIA ACT.
 
    There can be no assurance that  the Merger will be consummated, inasmuch  as
the  Merger  is subject  to various  conditions,  some of  which are  beyond the
control of Varlen, the Purchaser and the  Company. See Section 13. In the  event
that, for any reason, the Merger does not occur, depending on the results of the
Offer, Varlen and the Purchaser intend to consider the desirability of acquiring
either additional Shares or the entire remaining equity interest in the Company.
If  Varlen  and/or  the  Purchaser  determine  to  do  either,  any  such future
transaction or  transactions might  be by  means of  a merger,  share  exchange,
reverse  stock split, open market or privately-negotiated purchases, one or more
additional tender offers, exchange offers or otherwise. Such transactions  might
involve  the exchange of Shares for cash, securities of the Company, Varlen, the
Purchaser or a subsidiary of any of  the foregoing, or some combination of  cash
and  securities, and may be  on terms and at prices  more or less favorable than
those  of  the  Offer.  Moreover,  the  decision  to  enter  into  such   future
transactions and the forms they might take will depend on the circumstances then
existing,  including the  financial resources  of Varlen  and the  Purchaser and
Varlen's business, tax and accounting  objectives, performance of the Shares  in
the  market, availability and alternative uses  of funds, money market and stock
market conditions, general economic conditions, and other factors. Varlen and/or
the Purchaser may enter into  one or more such  transactions whether or not  the
Purchaser  purchases Shares pursuant  to the Offer.  Varlen and/or the Purchaser
may also engage  in certain  of such  transactions during  the period  following
expiration of the Offer and prior to the Merger.
 
    PLANS FOR THE COMPANY
 
    As  described in this Offer to Purchase,  Varlen and the Purchaser have made
proposals which would, if completed, result in a merger of the Company,  changes
in its board of directors, the termination of quotations for the Company's stock
on  NASDAQ and the termination of the  registration of the Company's stock under
the Exchange Act. At present Varlen and the Purchaser do not have any plans  for
any material sale of the Company's assets, changes in capitalization or dividend
policy, or other changes in the Company's corporate structure or business. After
consummation  of the  Merger, Varlen  will continue  to review  the business and
operations of the Company and, based on such review, may effect the  acquisition
or  disposition of assets or other  changes in the Company's business, corporate
structure, capitalization,  management or  dividend  policy which  it  considers
appropriate  or desirable. Varlen has not  yet determined what specific actions,
if any, it may take with respect to the Company.
 
    THE ACQUISITION AGREEMENT
 
    THE OFFER AND  MERGER.  The  Acquisition Agreement provides  for the  public
announcement  of the Offer  within one business day  after the execution thereof
and for the commencement of the Offer as
 
                                       17
<PAGE>
promptly as practicable, but  in no event later  than five business days,  after
such  public announcement. The  obligation and right of  Purchaser to accept for
payment and pay  for any Shares  tendered pursuant  to the Offer  is subject  to
satisfaction  of the  Minimum Condition,  the expiration  or termination  of all
waiting periods under the HSR Act and the other conditions described in  Section
13.  The Purchaser expressly reserves the right  to waive any such condition, to
increase the price per Share payable in the Offer and to make any other  changes
in the terms and conditions of the Offer; provided that the Purchaser has agreed
that  it will not (i)  decrease the price payable in  the Offer, (ii) change the
form of consideration  payable in the  Offer or the  Merger, (iii) increase  the
Minimum  Condition, or  (iv) amend  any other term  of the  Offer (including the
conditions described  in Section  13)  in a  manner  materially adverse  to  the
holders of Shares.
 
    The  Acquisition Agreement provides  that, as soon  as practicable following
consummation of the Offer and the satisfaction or waiver of certain  conditions,
the  Purchaser will be merged  into the Company, with  the Company surviving the
Merger. Pursuant to the Merger, each  outstanding Share (other than Shares  held
by  Varlen, the Purchaser, the  Company or any direct  or indirect subsidiary of
Varlen, the  Purchaser  or  the  Company,  and  Shares  with  respect  to  which
dissenter's  rights  under  the Virginia  Act  are properly  exercised)  will be
converted into  the right  to receive  $16.125 in  cash, without  any  interest.
Following  the Merger, the Company will be  a wholly owned subsidiary of Varlen.
The Merger  is subject  to  the satisfaction  of various  conditions,  including
approval by the Company's shareholders if required under the Virginia Act.
 
    In  the Acquisition Agreement the Company has represented and warranted that
its Board of  Directors has approved  the Offer and  the Merger and  recommended
acceptance of the Offer by holders of Shares and approval of the Merger (if such
approval  is required by the Virginia Act) by holders of Shares. The Company has
further represented and warranted that its Board of Directors (all of whom,  the
Company's counsel has opined to Varlen, are "disinterested directors" within the
meaning  of the Virginia Act with respect to Varlen and the Purchaser) has taken
certain actions  in order  to  exempt Varlen,  the Purchaser,  their  respective
direct  and  indirect  subsidiaries and  the  Offer,  the Merger  and  the other
transactions contemplated by the Acquisition Agreement from the restrictions and
other provisions of: (A)  Article 14 (AFFILIATED  TRANSACTIONS) of the  Virginia
Act,  in the manner  provided by Section 13.1-727.B.1(iv)  which (absent such an
exemption   or   similar    board   action)    generally   prohibits    mergers,
recapitalizations,  share exchanges, asset sales  and other transactions between
certain Virginia  corporations  and holders  of  10%  or more  of  their  voting
securities   ("interested  shareholders")  unless  approved  by  a  majority  of
"disinterested directors"  and/or holders  of  two-thirds of  the  corporation's
shares  excluding those of the interested shareholder; (B) Article 14.1 (CONTROL
SHARE ACQUISITIONS) of  the Virginia  Act, which  (absent such  an exemption  or
similar board action) generally denies voting rights to certain acquirers of 20%
of  more  of  the outstanding  voting  power  of a  public  Virginia corporation
("acquiring persons") unless  granted by a  majority of the  shares entitled  to
vote  in the election of  directors of the corporation  other than those held by
acquiring persons  and certain  corporate insiders;  and (C)  Article I  of  the
Articles  of Incorporation,  as amended  of the  Company (the  "Charter"), which
(absent such  an  exemption or  similar  board action)  generally  requires  the
affirmative  vote of holders of 75% of the  Shares in order to approve a merger,
consolidation and certain other business combinations between the Company and  a
beneficial  owner of  10% or more  of its Shares.  The Company and  its Board of
Directors have agreed to take such other actions necessary or appropriate at the
request of Varlen or the Purchaser  to: (1) exempt Varlen, the Purchaser,  their
respective direct and indirect subsidiaries, the Offer, the Merger and the other
transactions  contemplated by the  Acquisition Agreement from  the provisions of
any takeover,  affiliated  transactions,  business  combination,  control  share
acquisition  or other provision of (i) law  or regulation of the Commonwealth of
Virginia or any department or  agency thereof or (ii)  the Charter or Bylaws  of
the  Company,  and (2)  maintain the  shareholder vote  required to  approve the
Merger at the two-thirds level.
 
    COVENANTS OF THE COMPANY.  Under the Acquisition Agreement, the Company  has
agreed  that unless Varlen or the Purchaser otherwise agree in writing, prior to
the Effective Time or such earlier time as designees of the Purchaser constitute
a majority of the Board of Directors of the Company:
 
                                       18
<PAGE>
        (i) the business of the Company and its subsidiaries shall be  conducted
    in  the ordinary course  of business and consistent  with past practice, and
    the Company shall use its reasonable  best efforts to maintain and  preserve
    its  and  its  subsidiaries' business  organization,  assets,  employees and
    advantageous business relationships;
 
        (ii) neither the Company nor any of its subsidiaries shall: (1) amend or
    propose to amend its articles of incorporation or bylaws; (2) split, combine
    or reclassify any shares of its capital  stock or declare, set aside or  pay
    any  dividend payable in cash, stock or property with respect to its capital
    stock except for regular quarterly cash dividends not in excess of $.07  per
    Share on the Shares and except for any dividend by a wholly owned subsidiary
    payable  to the Company or another wholly owned subsidiary; (3) issue, sell,
    pledge, dispose  of or  encumber  any additional  shares of,  or  securities
    convertible  into or exchangeable or  exercisable for, or options, warrants,
    calls, commitments or rights  of any kind to  acquire, any capital stock  of
    any  class of the Company or any of its subsidiaries other than Shares which
    the Company is required to issue pursuant to the options outstanding on June
    14, 1996; (4) transfer, lease,  license, sell, mortgage, pledge, dispose  of
    or  encumber any material assets  of the Company or  any of its subsidiaries
    other than  in the  ordinary course  of business  and consistent  with  past
    practice;  (5) redeem, purchase or  otherwise acquire directly or indirectly
    any of the  capital stock  or other equity  securities of  the Company;  (6)
    adopt  a plan of  liquidation or resolutions  providing for the liquidation,
    dissolution, merger, consolidation or other reorganization of the Company or
    any of its subsidiaries, except for mergers among wholly owned subsidiaries;
    (7) acquire (by merger, consolidation or acquisition of stock or assets) any
    corporation, partnership or other business organization or division  thereof
    or make any investment with respect thereto; (8) directly or indirectly: (i)
    incur  or modify any  long-term indebtedness or  short-term indebtedness for
    money borrowed or other material liability other than in the ordinary course
    of business and  consistent with  past practice, (ii)  incur any  additional
    indebtedness  for  money  borrowed  other than  in  the  ordinary  course of
    business and  consistent with  past practice,  or (iii)  make any  loans  or
    advances  other than in the ordinary  course of business and consistent with
    past practice and intercompany loans and advances among the Company and  its
    wholly  owned  subsidiaries;  (9)  pay,  discharge  or  satisfy  any claims,
    liabilities or  obligations (absolute,  accrued, contingent  or  otherwise),
    other  than the  payment, discharge  or satisfaction  of liabilities  in the
    ordinary course of business and  consistent with past practice; (10)  waive,
    release,  grant or transfer any  rights of value or  modify or change in any
    material respect any  existing license, lease,  contract or other  document,
    other  than  in the  ordinary course  of business  and consistent  with past
    practice; or (11) enter into  any material commitment or transaction,  other
    than in the ordinary course of business and consistent with past practice;
 
       (iii)  neither the Company  nor any of its  subsidiaries shall: (1) grant
    any increase in the compensation payable or to become payable by the Company
    or any of its  subsidiaries to any of  its directors, executive officers  or
    key  employees or adopt any new, or  amend or otherwise increase the amounts
    payable  or  to  become  payable  under,  any  existing,  bonus,   incentive
    compensation,   severance,  deferred  compensation,  profit  sharing,  stock
    option, stock  purchase, insurance,  pension, retirement  or other  employee
    benefit  plan (including (but not limited to) the granting of stock options,
    stock appreciation rights or restricted stock),  or (2) enter into or  amend
    any employment or change-in-control agreement with, or, except in accordance
    with  the existing written policies and agreements of the Company, grant any
    severance or termination pay  to, any director, officer  or employee of  the
    Company or any of its subsidiaries; and
 
       (iv)  neither the  Company nor  any of  its subsidiaries  shall agree, in
    writing or otherwise,  to take any  of the foregoing  actions or any  action
    which  would  make any  representation  or warranty  of  the Company  in the
    Acquisition Agreement untrue or incorrect in any material respect.
 
    NON-SOLICITATION.  The Acquisition  Agreement further provides that  neither
the  Company nor any of its subsidiaries, nor any of their respective directors,
officers,  employees,  investment  bankers,  representatives  or  agents  shall,
directly  or indirectly, make, solicit, initiate or encourage the initiation of,
any inquiries  or proposals  from, or  provide any  confidential information  or
participate  in any discussions or negotiations  with, or otherwise cooperate in
any way with  or assist,  any person (other  than Varlen  and its  subsidiaries,
those   third  parties  previously  disclosed  in  writing  by  the  Company  to
 
                                       19
<PAGE>
Varlen  prior  to  the  execution  of  the  Acquisition  Agreement  ("Previously
Disclosed")  and  their  respective directors,  officers,  employees, investment
bankers, commercial banks,  representatives and agents)  concerning any  merger,
consolidation,  other  business  combination,  recapitalization,  liquidation or
dissolution or any purchase or other acquisition or sale or other disposition of
assets (other than  in the  ordinary course of  business) or  shares of  capital
stock  of the  Company or  any of  its subsidiaries  or any  similar transaction
involving the  Company or  (except as  Previously Disclosed)  any subsidiary  or
division  of  the Company  or any  subsidiary; PROVIDED,  HOWEVER, that  (i) the
Company or  its Board  of Directors  shall  not be  prohibited from  taking  and
disclosing  to the Company's shareholders a  position contemplated by Rule 14d-9
or Rule 14e-2 promulgated under the Exchange Act, and (ii) in the event that the
Company shall  receive an  unsolicited proposal  from a  third party  which  the
Company's  Board  of Directors  determines,  based on  the  advice of  its legal
counsel and  independent  financial advisor,  is  capable of  consummating  such
transaction, for the acquisition for cash of all the outstanding Shares on terms
that  the Company's Board  of Directors determines,  based on the  advice of its
financial advisor (the receipt of which advice shall be confirmed in writing  to
Varlen  by the Company), are economically superior to those of the Offer and the
Merger and which in  the written opinion  of legal counsel  to the Company  (the
delivery  of which shall  be confirmed in  writing to Varlen  by such counsel) a
failure to consider  by the Board  of Directors  of the Company  would create  a
substantial  risk  of  violating  their fiduciary  duties  to  shareholders, the
Company may provide information to such third party to the same extent that such
information has been  provided to  the Purchaser  and Varlen.  The Company  must
promptly  advise Varlen  of, and  communicate to Varlen  the terms  of, any such
inquiry or proposal the Company may receive.
 
    CONFIDENTIALITY AND STANDSTILL AGREEMENTS.  Under the Acquisition Agreement,
the Company has agreed to use its reasonable best efforts to obtain confidential
information, non-disclosure, non-use  and standstill agreements  from any  third
party  with or for  whom the Company or  any subsidiary has  taken any action or
received any proposal  not prohibited under  the non-solicitation provisions  of
the  Acquisition  Agreement.  The Company  also  agreed  not to  consent  to the
termination or  amendment of  the  confidential information,  non-disclosure  or
non-use provisions of any agreement with a third party without the prior written
consent  of Varlen or the  Purchaser, and to use  its reasonable best efforts to
take all actions  necessary or  proper to  enforce strict  compliance with  such
provisions.
 
    STOCK  INCENTIVE PLANS.   Under  the Acquisition  Agreement, the  Company is
required to  adjust the  terms  of all  outstanding  employee stock  options  to
purchase  Shares granted  under any  stock option  plan of  the Company  and all
restricted Shares granted under any restricted stock plan to cancel such options
and restricted Shares. Not later than immediately prior to the Merger, each such
option and restricted Share shall  become fully exercisable or unrestricted,  as
the  case may be, and vested. The Company  has agreed to use its reasonable best
efforts to cancel each  option outstanding not later  than immediately prior  to
the  Merger in exchange for a cash payment equal to the product of (i) the total
number of Shares subject to the option  and (ii) the excess, if any, of  $16.125
(or  any such  higher price  per Share  as may  be paid  in the  Offer) over the
exercise price per Share subject to such option. The Company has also agreed  to
use  its reasonable best efforts to cancel each restricted Share outstanding not
later than immediately prior to the Merger in exchange for $16.125. In addition,
the Board of Directors has agreed to take appropriate action with respect to the
Company's Employee Stock Savings Plan (the "Savings Plan") to provide that:  (i)
until  the earlier  to occur  of the  Effective Time  or any  termination of the
Acquisition Agreement, participants in the Savings Plan will not be eligible  to
receive  matching Shares on any Shares  purchased by such participants after the
date the  Acquisition Agreement,  and (ii)  any rights  of participants  in  the
Savings  Plan to receive matching Shares from the  Company as of the date of the
Acquisition Agreement accrued as a result of Shares purchased prior to the  date
of  the Acquisition Agreement shall be cancelled  in exchange for a payment, not
later than immediately prior to the Effective Time, from the Company (subject to
any applicable withholding taxes) in cash equal to the product of (x) the  total
number  of such accrued  matching Shares and (y)  $16.125. Under the Acquisition
Agreement, any  other plan  providing for  the issuance  or grant  of any  other
interest  in respect of the capital stock of the Company or any subsidiary shall
terminate as of the consummation of the Merger.
 
                                       20
<PAGE>
    DESIGNATION OF DIRECTORS.  The Acquisition Agreement provides that, promptly
upon  the acceptance for payment  of and payment by  the Purchaser in accordance
with the  Offer  for  Shares  constituting  50%  or  more  of  all  Shares  then
outstanding  in accordance with the Offer, and from time to time thereafter, the
Purchaser will be entitled to designate such number of directors, rounded up  to
the next whole number, on the Board of Directors of the Company as will give the
Purchaser representation on the Board of Directors equal to at least that number
of  directors which equals the  product of the total  number of directors on the
Board of Directors multiplied  by the percentage that  such number of Shares  so
accepted  for payment and paid for or owned  by Varlen or the Purchaser bears to
the total number of  Shares outstanding; PROVIDED,  HOWEVER, that the  Purchaser
shall have the right (in its discretion) to designate a number of directors less
than such product; AND PROVIDED FURTHER, HOWEVER, that at all times prior to the
Merger  there shall  be at least  two members of  the Board of  Directors of the
Company selected by  current members  of such  Board. Subject  to the  preceding
sentence, upon the Purchaser's purchase of the Shares pursuant to the Offer, the
Purchaser  will  have sufficient  voting  power to  remove  the entire  Board of
Directors of the Company  and replace it with  the Purchaser's nominees. In  the
Acquisition  Agreement, the Company  has agreed to take  all action necessary to
cause the  Purchaser's  designees  to  be elected  to  the  Company's  Board  of
Directors  (including mailing  to the  shareholders the  information required by
Section 14(f) of the Exchange Act and Rule 14f-1 promulgated thereunder) and  to
use its reasonable best efforts to cause the resignation of such directors, and/
or  an increase in the number of its directors, as may be directed by Varlen and
required to implement the foregoing.
 
    CONFIDENTIALITY.  Under the Acquisition Agreement, Varlen and the  Purchaser
have   agreed  to,   and  to  cause   their  officers,   employees,  agents  and
representatives to, keep confidential, unless compelled to disclose by  judicial
or  administrative  process or  by other  requirements  of law,  all non-public,
confidential or proprietary information provided  by the Company (except to  the
extent  that such information can be shown  to have been (i) previously known by
Varlen or the Purchaser, (ii) in the public domain through no fault of Varlen or
the Purchaser, or (iii)  later lawfully acquired by  Varlen from other  sources)
and will not release or disclose such information to any other person.
 
    INDEMNIFICATION  AND INSURANCE.  The Acquisition Agreement provides that the
Charter or Bylaws of the Company, after the Merger (the "Surviving Corporation")
shall contain provisions no less favorable with respect to indemnification  than
those  that are set forth in the Company's Charter and Bylaws, as amended to the
date the Acquisition Agreement, which provisions may not be amended, repealed or
otherwise modified for a period  of five years after  the Effective Time in  any
manner  that would adversely affect the  rights thereunder of individuals who on
or prior to the Effective Time were directors, officers, employees or agents  of
the  Company  (the  "Indemnified  Parties"). Varlen  shall  cause  the Surviving
Corporation to fulfill such indemnification  obligations. Varlen also agreed  to
use  its reasonable best efforts  to cause to be  maintained in effect for three
years from the Effective Time the current policy (or successor policies) of  the
directors'  and  officers' liability  insurance maintained  by the  Company with
respect to  matters  occurring  prior  to the  Effective  Time,  to  the  extent
available; PROVIDED, HOWEVER, that Varlen is not required to expend more than an
amount  per year equal to 150% of current annual premiums paid by the Company to
maintain or procure insurance coverage pursuant hereto.
 
    REPRESENTATIONS AND WARRANTIES.  The Acquisition Agreement contains  various
customary  representations  and  warranties of  the  parties  thereto, including
representations by  Varlen  and  the  Purchaser as  to  their  organization  and
qualification,  authority  relative  to the  Acquisition  Agreement, compliance,
financing, and brokers and  finders, and by the  Company as to its  organization
and qualification, capitalization, capitalization of its subsidiaries, authority
relative  to the Acquisition Agreement, lack of conflicts, filing of reports and
financial statements,  litigation, employee  benefit  plans, taxes,  absence  of
certain changes, brokers and finders, liabilities, contracts, board actions, and
cash and cash equivalents.
 
    TERMINATION.   The Acquisition Agreement may be terminated at any time prior
to the Effective Time, whether prior to or after approval by the shareholders of
the Company:
 
                                       21
<PAGE>
        (A) by mutual written consent of  the Boards of Directors of Varlen  and
    the Company;
 
        (B)  by  either  the  Company  or  Varlen  if  any  court  of  competent
    jurisdiction or other governmental body  shall have issued an order,  decree
    or  ruling or taken any  other action (which order,  decree, ruling or other
    action the parties hereto shall use their reasonable best efforts to  lift),
    in  each case,  permanently restraining, enjoining  or otherwise prohibiting
    the Offer or the Merger and such order, decree, ruling or other action shall
    have become final and non-appealable;
 
        (C) by the  Company, if  the Offer shall  have been  terminated, or  the
    Offer  shall have  expired, without  the purchase  of any  Shares thereunder
    within two business days thereof and  such non-purchase shall not have  been
    due  to a failure to satisfy any of the conditions of the Offer described in
    Section 13 of  this Offer  to Purchase; PROVIDED  that the  Company may  not
    terminate  the Acquisition  Agreement if  the Company  is in  breach of such
    agreement;
 
        (D) by the Company, if the Effective Time shall not have occurred on  or
    before  December 31, 1996 due  to a failure of any  of the conditions to the
    obligations of  the  Company  to  effect the  Merger  as  described  in  the
    Acquisition  Agreement;  PROVIDED that  the  Company may  not  terminate the
    Agreement if  the Company's  failure  to fulfill  any obligation  under  the
    Acquisition  Agreement has been the cause of, or resulted in, in whole or in
    part, the failure of the Effective Time to occur on or before such date;
 
        (E) by the Company, if: (1) any corporation, partnership, person,  other
    entity  or group (as defined in Section  13(d)(3) of the Exchange Act) other
    than Varlen or  the Purchaser  or any  of their  respective subsidiaries  or
    affiliates  (a "Qualified Person") shall  have commenced (within the meaning
    of Rule 14d-2 under the  Exchange Act) a cash tender  offer for any and  all
    Shares at a price at or in excess of $16.125 per Share, or (2) any Qualified
    Person  shall have made a  bona fide written proposal  involving a merger or
    consolidation of the Company or the acquisition of all the Shares or all  or
    a   substantial  portion  of  its  assets  which  would  result  in  a  cash
    distribution to shareholders of the Company  in excess of $16.125 per  Share
    (any  such proposal described in subclause (1) or (2) being referred to as a
    "Qualified Proposal"), and the Board of Directors of the Company shall  have
    been advised in a writing by its legal counsel (the delivery of which advice
    shall  have been confirmed in writing to  Varlen by such counsel) that there
    would be  a substantial  risk of  liability for  breach of  their  fiduciary
    obligations to shareholders if they failed to recommend such offer or accept
    such  Qualified  Proposal;  PROVIDED,  HOWEVER,  that  the  Company  may not
    terminate the  Acquisition  Agreement:  (i) until  the  expiration  of  five
    business  days after notice of such Qualified Proposal has been delivered to
    Varlen, or (ii) unless otherwise consented  to in writing by Varlen, if  any
    such  offer or Qualified Proposal is made in  breach of, or as a result of a
    breach of its non-solicitation obligation described herein;
 
        (F) by either of Varlen or the Purchaser, if due to a failure to satisfy
    any of the conditions of the Offer described in Section 13 of this Offer  to
    Purchase: (i) Varlen or any of its subsidiaries or affiliates shall not have
    commenced  the Offer, or shall have terminated  the Offer, or (ii) the Offer
    shall have expired without the purchase of any Shares thereunder within  two
    business  days thereof, or (iii) Varlen shall have determined not to proceed
    with the  Merger;  PROVIDED  that  neither  Varlen  nor  the  Purchaser  may
    terminate  the Acquisition Agreement if either Varlen or the Purchaser is in
    material breach of such agreement;
 
        (G) by either of  Varlen or the Purchaser,  if the Effective Time  shall
    not  have occurred on or before December 31, 1996 due to a failure of any of
    the conditions to the obligations of Varlen and the Purchaser to effect  the
    Merger  described in the Acquisition Agreement; PROVIDED that neither Varlen
    nor the Purchaser may terminate the Acquisition Agreement if Varlen's or the
    Purchaser's failure to fulfill any material obligation under the Acquisition
    Agreement has been the cause  of, or resulted in, in  whole or in part,  the
    failure of the Effective Time to occur on or before such date; or
 
       (H)  by either of  Varlen or the  Purchaser, if prior  to the purchase of
    Shares in the Offer, the Board of  Directors of the Company shall have:  (1)
    withdrawn, or modified in a manner adverse to
 
                                       22
<PAGE>
    Varlen  or the Purchaser, its approval or recommendation of the Offer or the
    Merger or any of its other  actions taken in accordance with the  provisions
    of  the  Acquisition Agreement  summarized in  the  third paragraph  of "The
    Acquisition Agreement -- The Offer and Merger" hereinabove, (2) taken any of
    the actions referred to in the third paragraph of "The Acquisition Agreement
    -- The Offer and  Merger" hereinabove for the  benefit of any person  (other
    than  Varlen, the Purchaser or any  of their respective subsidiaries) or any
    transaction (other than the Offer and Merger), or (3) resolved to do any  of
    the foregoing.
 
    TERMINATION  FEE.  If the Acquisition Agreement is terminated by the Company
pursuant to the provision described in clause (E) of  "The Acquisition Agreement
- -- Termination"  above or  if  the Acquisition  Agreement  and/or the  Offer  is
terminated by Varlen or the Purchaser by reason of a failure of any condition to
the  Offer described  in (i) paragraphs  (a), (b) or  (g) of Section  13 of this
Offer to Purchase, (ii) paragraph  (c) of Section 13  of this Offer to  Purchase
(but  only if due,  in whole or  in part, to any  (x) act of  the Company or any
affiliate thereof,  or (y)  other occurrence,  event, fact  or circumstance  not
beyond  the control of  the Company or  any affiliate thereof),  or (iii) clause
(vi) of paragraph (c) of Section 13  of this Offer to Purchase, the Company  has
agreed  to  pay  to  Varlen  a termination  fee  of  $6,500,000  plus  an amount
sufficient to reimburse  Varlen and  its subsidiaries  for all  fees, costs  and
expenses relating to the transactions contemplated by the Acquisition Agreement,
the  financing contemplated  by the  Acquisition Agreement  and the transactions
contemplated thereby  (PROVIDED  that the  Company  shall not  be  obligated  to
reimburse  Varlen or  its subsidiaries  for more  than $2,000,000  of such fees,
costs and expenses).
 
    In the event of the termination of the Acquisition Agreement, it will become
null and void and have no effect without any liability on the part of any party,
except that provisions relating to the termination fee, expenses of the  parties
and  confidentiality  of  information  will  survive  any  such  termination and
provided that a party will not be relieved from liability for any breach of  the
Acquisition Agreement.
 
    COSTS  AND  EXPENSES.   The Acquisition  Agreement  provides that  except as
provided above  under "Termination  Fee,"  all costs  and expenses  incurred  in
connection with the transactions contemplated by the Acquisition Agreement shall
be paid by the party incurring such costs and expenses.
 
    SHAREHOLDER TENDER AGREEMENT
 
    TENDER   OF  TENDERING  SHAREHOLDER  SHARES.     Varlen  and  the  Tendering
Shareholders have entered into the Shareholder Tender Agreement, which  provides
that  each Tendering  Shareholder will tender  its Shares pursuant  to the Offer
before the Expiration Date and will not withdraw any Shares so tendered  without
Varlen's   prior  written  consent;  PROVIDED,   HOWEVER,  that  each  Tendering
Shareholder may: (i) refrain from so tendering its Shares, and may withdraw  any
Shares  previously so  tendered, if  and for  so long  as there  shall have been
commenced and not terminated a cash tender offer by any person or "group" (other
than Varlen  or  the  Purchaser  or any  of  their  respective  subsidiaries  or
affiliates)  for any and all Shares at a price in excess of $16.125 per share (a
"Superior Offer"); and (ii) tender its  Shares pursuant to such Superior  Offer;
AND  PROVIDED FURTHER,  HOWEVER, that  in the event  that (x)  any such Superior
Offer shall have expired or been  terminated without purchase of such  Tendering
Shareholder's  Shares, and  (y) the  Offer shall  then be  in effect,  then such
Tendering Shareholder shall again be subject to the foregoing provisions.
 
    Notwithstanding the foregoing, the  Shareholder Tender Agreement permits  up
to  50,000  of  the Tendering  Shareholders'  Shares  (in the  aggregate)  to be
contributed to one or more charitable organizations and, if and to the extent so
contributed, such Shares  will not be  required to be  tendered pursuant to  the
Offer.
 
    OTHER  AGREEMENTS.  During the term of the Shareholder Tender Agreement, and
except as  otherwise provided  therein  or with  the  prior written  consent  of
Varlen, each Tendering Shareholder may not (i) sell, pledge or otherwise dispose
of  any of its Shares, (ii) deposit its Shares into a voting trust or enter into
a voting agreement or arrangement with  respect to such Shares, (iii) grant  any
proxy,
 
                                       23
<PAGE>
power-of-attorney  or other authorization in or  with respect to such Shares, or
(iv) enter into any  contract, option or other  arrangement or undertaking  with
respect   to  the  direct  or  indirect  sale,  assignment,  transfer  or  other
disposition of such Shares.
 
    The Shareholder  Tender Agreement  requires  each Tendering  Shareholder  to
abide  by  the  terms  of the  non-solicitation  provisions  of  the Acquisition
Agreement summarized in "The Acquisition Agreement -- Non-Solicitation"  section
set forth above in this Section 11.
 
    TERMINATION.    The Shareholder  Tender  Agreement will  terminate  upon the
earlier to occur of: (i) the termination of the Acquisition Agreement (if  any),
and (ii) the Effective Date.
 
    GENERAL.   The  preceding descriptions  of the  terms and  provisions of the
Acquisition Agreement  and the  Shareholder Tender  Agreement are  qualified  in
their  entirety by reference to the texts of such agreements, which are exhibits
to the  Tender Offer  Statement on  Schedule 14D-1  filed by  the Purchaser  and
Varlen  with the Commission and  is available for inspection  and copying at the
principal office of the Commission in the manner set forth in Section 9.
 
    12.  SOURCE AND AMOUNT OF FUNDS.  The total amount of funds required by  the
Purchaser to purchase all presently outstanding Shares pursuant to the Offer and
the Merger and to pay related fees and expenses is estimated to be approximately
$165 million. Such funds will be obtained by the Purchaser or provided by Varlen
or  one or more of its subsidiaries to the Purchaser from available cash on hand
and pursuant to  a $190 million  credit facility (the  "Credit Facility") to  be
provided  by The  First National  Bank of Chicago  (the "Agent  Bank") and other
banks and financial institutions who may become party thereto (collectively with
the Agent Bank, the "Banks"), the identity of which has not yet been determined.
The Credit Facility will be comprised of a term loan commitment (the "Facility A
Commitment") in the aggregate principal amount of approximately $135 million  to
be  provided to the Purchaser, and  a revolving credit/letter of credit facility
(the "Facility B Commitment") in the aggregate principal amount of approximately
$55 million to  be provided  to Varlen, the  Purchaser and/or  any other  wholly
owned  subsidiary  of  Varlen  who  may satisfy  the  conditions  to  becoming a
"Borrowing Subsidiary"  under  the  applicable  credit  agreement  (Varlen,  the
Purchaser and each such other subsidiary, in such capacity, the "Borrowers").
 
    The Facility A Commitment and the revolving credit portion of the Facility B
Commitment  will bear interest, at the Borrower's option from time to time, at a
rate equal to either the "Alternate  Base Rate," the "Eurocurrency Rate" or  the
"Fixed  CD Rate," in each case plus  a spread based on Varlen's Leverage Ratio."
The "Alternate Base Rate" for any day will  mean the greater of (i) the rate  of
interest  announced by the Agent Bank as  its "Corporate Base Rate" for such day
or (ii) the "Federal Funds Effective Rate"  in effect on such day plus .50%  per
annum,  changing as and when such Corporate Base Rate or Federal Funds Effective
Rate changes.  "Eurocurrency  Rate" generally  will  mean the  rate  for  dollar
deposits  appearing on  Telerate Page  3750, as  adjusted for  maximum statutory
reserves. The "Fixed  CD Rate" generally  will mean the  rate determined by  the
Agent  Bank based on  the average of  the prevailing bid  rates on the borrowing
date for the purchase of certificates of deposit of the Agent Bank, adjusted for
maximum Federal  Reserve  Board reserve  requirements  and the  Federal  Deposit
Insurance  Corporation  assessment rate.  The Credit  Facility will  provide for
customary provisions  relating to  yield  protection, availability  and  capital
adequacy.
 
    The  Credit Facility will provide for the  payment by Varlen of certain fees
including a (i) commitment fee at a  rate ranging from .175% to .375% per  annum
based  on the average daily unused portion  of the Facility A Commitment and the
Facility B Commitment and (ii) certain  letter of credit fees ranging from  .50%
to  1.25% per annum based on the undrawn stated amount of each letter of credit,
a letter of  credit fronting fee  of 0.15% of  the face amount  of each  standby
letter  of credit  and customary fees  in connection with  commercial letters of
credit and performance letters of credit.
 
    The  Credit   Facility  will   have  customary   conditions  to   borrowing,
representations  and  warranties,  covenants  and  events  of  default.  Without
limiting the generality of the foregoing,  the Lenders obligation to fund  shall
be conditioned upon the satisfaction of the Minimum Condition.
 
                                       24
<PAGE>
    Each  of Varlen and its domestic  subsidiaries (including the Purchaser and,
upon consummation of the Offer or the Merger, the Company) will  unconditionally
guarantee  the indebtedness, obligations and  liabilities of the Borrowers under
the Credit Facility.
 
    The commitment of  the Banks under  the Credit Facility  will expire on  the
sixth  anniversary of the date of the closing of the Credit Facility, subject to
certain extension provisions. It is anticipated that borrowings under the Credit
Facility will  be repaid  from  funds generated  internally  by Varlen  and  its
subsidiaries  (including the Company) and from  other sources, which may include
other bank financings.
 
    THE OFFER IS NOT SUBJECT TO A FINANCING CONDITION.
 
    13.  CERTAIN CONDITIONS  OF THE OFFER AND  THE MERGER.  Notwithstanding  any
other  provision  of  the Acquisition  Agreement  or  the Offer,  and  except as
expressly limited below,  the Purchaser: shall  not be required  to commence  or
continue  the  Offer; or  accept for  payment,  purchase or  pay for  any Shares
tendered; may  postpone the  acceptance  for payment,  the purchase  of,  and/or
payment for, Shares; and/ or may amend (subject to the restrictions contained in
the  Acquisition Agreement, which for  purposes of this section  of the Offer to
Purchase includes the same as it  may be modified, amended, supplemented  and/or
restated from time to time) or terminate the Offer; if: (1) there shall not have
been  validly tendered and not withdrawn prior  to the expiration of the Offer a
number of  Shares which,  together with  the Shares  beneficially owned  by  the
Purchaser  and Varlen,  represents two-thirds of  the total voting  power of all
shares of capital stock of the Company outstanding on a fully-diluted basis,  or
(2)  any waiting  period under  the HSR  Act applicable  to the  purchase of the
Shares pursuant to the Offer shall not  have expired or been terminated, or  (3)
at  any time on or after  June 1, 1996 and prior to  the time of payment for any
such Shares  (whether or  not  any Shares  have  theretofore been  accepted  for
payment or paid for pursuant to the Offer), any of the following events (each an
"Event")  shall have  occurred (each of  paragraphs (a) through  (h) providing a
separate and independent  condition to the  Purchaser's obligations pursuant  to
the Offer):
 
       (a) the  Company shall have authorized, recommended or proposed, or shall
           have announced an  intention to authorize,  recommend or propose,  or
    shall  have entered into an agreement or agreement in principle with respect
    to, any merger, consolidation, other business combination, recapitalization,
    liquidation or dissolution, or any purchase or other acquisition or sale  or
    other  disposition of assets (other than in the ordinary course of business)
    or shares of capital stock of the Company or any of its subsidiaries, or any
    similar transaction involving the Company  or any subsidiary or division  of
    the  Company  or any  subsidiary (other  than the  Merger and  as Previously
    Disclosed  with  respect  to  certain  subsidiaries)  (the  foregoing  being
    collectively  referred  to as  a  "Business Combination"),  or  any material
    change in  its  capitalization, or  any  release or  relinquishment  of  any
    material contract or other rights not in the ordinary course of business; or
 
       (b) (i)  the Board of Directors of the Company shall have (x) modified or
           amended in any respect its recommendation of the Offer, the Merger or
    any of its  other actions  taken in accordance  with the  provisions of  the
    Acquisition  Agreement summarized in the third paragraph of "The Acquisition
    Agreement -- The Offer and Merger" in Section 11 of this Offer to  Purchase,
    or  (y) adopted  any resolution to  do so,  or (ii) the  opinion of Virginia
    counsel to the Company received by  the Company pursuant to the  Acquisition
    Agreement (which opinion relates to the actions of the Board of Directors of
    the  Company  described  in  the  foregoing  clause  (i))  shall  have  been
    disclaimed, disavowed,  retracted  or  revoked  in  any  respect,  or  shall
    otherwise  have been rendered inaccurate or erroneous, or (iii) the Board of
    Directors of the Company shall  have (x) taken any  of the actions taken  in
    accordance  with the provisions  of the Acquisition  Agreement summarized in
    the third paragraph of "The Acquisition  Agreement -- The Offer and  Merger"
    in  Section 11  of this  Offer to  Purchase for  the benefit  of any person,
    entity or group (as defined in Section 13(d)(3) of the Exchange Act)  (other
    than  Varlen, the Purchaser or any  of their respective subsidiaries) or any
    Business Combination (other than the Offer  and the Merger), or (y)  adopted
    any resolution to do so; or
 
                                       25
<PAGE>
       (c) it  shall have been  publicly disclosed, or  Varlen, the Purchaser or
           the  Company  shall  have  learned  that:  (i)  any  person,   entity
    (including  the Company or  any of its subsidiaries  or affiliates) or group
    (as defined in Section 13(d)(3) of the Exchange Act) (a "Person") shall have
    (x) acquired  or  become  the beneficial  owner  of  more than  10%  of  the
    outstanding  Shares  (other than  the Tendering  Shareholders), or  (y) been
    granted by  the  Company  any  warrant,  option  or  right,  conditional  or
    otherwise,  to  acquire  beneficial  ownership  of  more  than  10%  of  the
    outstanding Shares, other  than acquisitions  by a Person  who has  publicly
    disclosed  such ownership in a Schedule 13D or 13G (or amendment thereto) on
    file with the Commission prior to June 1, 1996, and other than for bona fide
    arbitrage purposes, or (ii) any such Person (other than, in the case of  the
    following clause (x), a Tendering Shareholder) who has publicly disclosed in
    such  a Schedule  13D or  13G any  such ownership  of more  than 10%  of the
    outstanding Shares prior to such date shall have (x) acquired or become  the
    beneficial  owner of, or proposed to  acquire or become the beneficial owner
    of, additional  Shares, or  (y) been  granted by  the Company  any  warrant,
    option  or right, conditional or otherwise,  to acquire any Shares, or (iii)
    any new group shall have been  formed which beneficially owns more than  10%
    of the Shares, or (iv) any Person shall have commenced, or publicly proposed
    to commence, a tender offer for outstanding Shares, or publicly proposed any
    Business   Combination,  or  (v)   any  Person  shall   have  commenced  any
    solicitation of proxies  with respect  to the  Shares in  opposition to  the
    Merger,  or (vi)  any Person  shall have  acquired or  become the beneficial
    owner of more than 50% of the outstanding Shares; or
 
       (d) there shall be  pending any  action or proceeding  before any  court,
           government,  governmental  authority  or agency:  (i)  challenging or
    seeking to make illegal, or to delay or otherwise directly or indirectly  to
    restrain or prohibit the making of the Offer, the acceptance for payment of,
    payment  for, or the purchase  of, some or all of  the Shares by Varlen, the
    Purchaser or any other subsidiary or affiliate of Varlen or the consummation
    of the Merger, or seeking to obtain material damages in connection with  the
    Offer  or the Merger, or (ii) seeking  to prohibit ownership or operation by
    Varlen, the Purchaser or any other subsidiary or affiliate of Varlen of  all
    or  a material portion of  the business or assets  of Varlen, the Company or
    any of their respective subsidiaries or affiliates or to compel Varlen,  the
    Purchaser or any other subsidiary or affiilate of Varlen to dispose of or to
    hold  separately all  or a  material portion  of the  business or  assets of
    Varlen, the Company or any  of their respective subsidiaries or  affiliates,
    as  a result  of the  Offer or  the Merger,  or (iii)  seeking to  impose or
    confirm limitations on the  ability of Varlen, the  Purchaser, or any  other
    subsidiary  or affiliate  of Varlen effectively  to exercise  full rights of
    ownership and control of any Shares (or  any shares of capital stock of  any
    subsidiary of the Company) (including, without limitation, the right to vote
    any  such Shares (or shares of a subsidiary)) acquired pursuant to the Offer
    or otherwise (directly or indirectly), on all matters properly presented  to
    the  Company's shareholders (or any such subsidiary's shareholders), or (iv)
    seeking to  require  divestiture  by  Varlen, the  Purchaser  or  any  other
    subsidiary  or affiliate  of Varlen  of any  Shares, or  (v) invalidating or
    rendering unenforceable any material provision of the Acquisition Agreement,
    or (vi)  which  otherwise  might materially  adversely  affect  Varlen,  the
    Company or any of their respective subsidiaries or affiliates;
 
       (e) there  shall be any  action taken, or  any statute, rule, regulation,
           judgment, order or injunction  proposed, enacted, entered,  enforced,
    promulgated,  issued or deemed applicable to the Offer or the Merger, by any
    court,  government,  governmental  authority  or  agency  (other  than   the
    application  of the waiting period provisions of the HSR Act to the Offer or
    to the  Merger) which  may, directly  or indirectly,  result in  any of  the
    consequences referred to in paragraph (d) above;
 
       (f) there  shall  have  occurred:  (i)  any  general  suspension  of,  or
           limitation on  prices  for, trading  in  securities on  any  national
    securities exchange or in the over-the-counter market, or (ii) a declaration
    of a banking moratorium or any suspension of payments in respect of banks in
    the United States, or (iii) any limitation (whether or not mandatory) by any
    governmental authority on, or any other event which, in the sole judgment of
    Varlen,  might  affect the  extension of  credit by  banks or  other lending
    institutions in  the United  States,  or (iv)  any  material change  in  the
 
                                       26
<PAGE>
    United  States or any other currency exchange  rates or any suspension of or
    limitation on, the markets therefor, or (v) any extraordinary adverse change
    in the financial  markets or the  market price  of the Shares,  or (vi)  any
    change in the general political, market, economic or financial conditions in
    the United States or abroad that could, in the sole judgment of Varlen, have
    a  material adverse effect upon the business or operations of the Company or
    any of its subsidiaries or affiliates or the trading of the Shares, or (vii)
    a commencement of war, armed hostilities or other international or  national
    calamity  directly or indirectly  involving the United  States, or (viii) in
    the case of any of the foregoing existing at the time of the commencement of
    the Offer, a material acceleration or worsening thereof; or
 
       (g) the representations and warranties of the Company in the  Acquisition
           Agreement  shall not be true and correct in all material respects, or
    the Company shall not have performed in all material respects each  covenant
    and  complied with each agreement  to be performed and  complied with by the
    Company under the Acquisition Agreement; or
 
       (h) the Company and Varlen  shall have agreed to  terminate the Offer  or
           the   Acquisition  Agreement,  or  the  Acquisition  Agreement  shall
    otherwise have been terminated in accordance with its terms;
 
which, in the sole judgment of the  Purchaser, in any such case, and  regardless
of  the circumstances  (including any  action or  inaction by  the Purchaser and
Varlen) giving rise to any such  condition, make it inadvisable to proceed  with
acceptance  for payment or purchase of or  payment for any Shares tendered or to
proceed with the Merger.
 
    The foregoing  conditions  are  for  the sole  benefit  of  Varlen  and  the
Purchaser  and may  be asserted  by Varlen and  the Purchaser  regardless of the
circumstances giving rise to such condition, including (without limitation)  any
action or inaction by Varlen or the Purchaser, or may be waived by Varlen or the
Purchaser  in whole  at any  time or  in part  from time  to time  in their sole
discretion. The failure by Varlen or the  Purchaser at any time to exercise  any
of  the foregoing rights shall not be deemed a waiver of any such right and each
such right shall be deemed an ongoing right and may be asserted at any time  and
from  time to time. Any determination by  Varlen or the Purchaser concerning any
Event shall be final and binding upon all parties.
 
    In addition, under the Acquisition  Agreement the obligations of Varlen  and
the  Purchaser to consummate and effect the  Merger are subject to the condition
that the Company shall not have received  demands for payment of the fair  value
of Shares (pursuant to Article 15 (DISSENTER'S RIGHTS) of the Virginia Act) with
respect to more than 5% of the outstanding Shares.
 
    In  addition, notwithstanding anything  to the contrary  in this Section 13,
the obligations of the Purchaser to accept for payment, purchase or pay for  any
Shares  tendered shall also be  subject to the expiration  or termination of all
waiting periods under the HSR Act that are applicable to the purchase of  Shares
pursuant to the Offer and the Acquisition Agreement.
 
    14.    DIVIDENDS AND  DISTRIBUTIONS.   If, on  or after  June 15,  1996, the
Company should  (i)  split,  combine  or otherwise  change  the  Shares  or  the
Company's  capitalization, (ii) issue  or sell any  additional securities of the
Company or otherwise cause an increase  in the number of outstanding  securities
of  the Company (except for Shares issuable  upon the exercise of employee stock
options outstanding on  the date  of the Acquisition  Agreement), (iii)  acquire
currently  outstanding Shares  or otherwise cause  a reduction in  the number of
outstanding Shares, or (iv)  disclose that it has  taken any such action,  then,
without  prejudice to Purchaser's rights under  Sections 1 and 13, the Purchaser
may, in its sole  discretion, make such adjustments  as it deems appropriate  to
reflect  such split, combination or  other change in the  purchase price and the
other terms  of the  Offer or  the Merger  (including, without  limitation,  the
number  and  type of  securities offered  to be  purchased, the  amounts payable
therefor and the fees payable hereunder).
 
    Except for  regular quarterly  cash dividends  paid by  the Company  on  its
Shares  in an amount not  in excess of $.07  per Share on the  Shares, if, on or
after June 15, 1996, the Company should declare or
 
                                       27
<PAGE>
pay any cash or stock  dividend or other distribution  or issue any rights  with
respect  to the Shares, payable or distributable  to shareholders of record on a
date prior  to the  transfer to  the name  of the  Purchaser or  its nominee  or
transferee  on the Company's  stock transfer records of  the Shares accepted for
payment pursuant to the Offer, then, without prejudice to the Purchaser's rights
under Sections  1  and 13  and  without limiting  the  rights of  the  Purchaser
described  in the  preceding paragraph  of this  Section 14,  any such dividend,
distribution or  right to  be received  by the  tendering shareholders  will  be
received  and held by the tendering shareholder for the account of the Purchaser
and will be required to be  promptly remitted and transferred by each  tendering
shareholder  to  the Depositary  for the  account  of Purchaser,  accompanied by
appropriate documentation and transfer.  Pending such remittance, the  Purchaser
will  be entitled to  all rights and  privileges as owner  of any such dividend,
distribution or right and may withhold the entire purchase price or deduct  from
the  purchase price the amount or value  thereof, as determined by the Purchaser
in its sole discretion.
 
    15.  CERTAIN LEGAL MATTERS.  Except  as set forth in this Section 15,  based
on a review of publicly available filings by the Company with the Commission and
other  information concerning the  Company provided to  Varlen, the Purchaser is
not aware of any license or other regulatory permit which appears to be material
to the business  of the  Company and  that might  be adversely  affected by  the
Purchaser's  acquisition  of  Shares pursuant  to  the Offer  (and  the indirect
acquisition of the stock of the  Company's subsidiaries), or of any approval  or
other  action by any  domestic or foreign  governmental or administrative agency
that would  be required  prior to  the acquisition  of Shares  by the  Purchaser
pursuant  to the Offer. Should any such approval or other action be required, it
is the Purchaser's  present intention  that such additional  approval or  action
would  be sought.  While the  Purchaser does not  presently intend  to delay the
purchase of Shares tendered  pursuant to the Offer  pending receipt of any  such
additional  approval or the taking of any such action, there can be no assurance
that any  such additional  approval  or action,  if  needed, would  be  obtained
without  substantial conditions or that adverse consequences might not result to
the Company's or Varlen's  business, or that certain  parts of the Company's  or
Varlen's  business might not be  required to be disposed  of or held separate or
other substantial conditions complied with in  order to obtain such approval  or
action  or in the  event that such  approvals were not  obtained or such actions
were not taken.  The Purchaser's obligation  to purchase and  pay for Shares  is
subject  to certain conditions  relating to the legal  matters discussed in this
Section 15. See Section 13.
 
    ANTITRUST.  Under the HSR Act,  certain acquisition transactions may not  be
consummated  unless  certain information  has  been furnished  to  the Antitrust
Division of the Department of Justice (the "Antitrust Division") and the Federal
Trade Commission  ("FTC")  and certain  waiting  period requirements  have  been
satisfied.  The acquisition of Shares pursuant  to the Offer and the Acquisition
Agreement is subject to such requirements.  On June 20, 1996, Varlen filed  with
the  Antitrust Division and the FTC a  Notification and Report Form with respect
to the Offer and the Merger.
 
    Under the provisions of the HSR Act applicable to the Offer, the purchase of
Shares pursuant to the Offer may not be consummated prior to the expiration of a
15-calendar day waiting period  following the filing  by Varlen, unless  earlier
terminated.  Accordingly, as such filing was made  on June 20, 1996, the waiting
period which is applicable to the Offer will expire at 11:59 p.m., New York City
time, on July 5, 1996, unless Varlen  receives a request from either the FTC  or
the  Antitrust Division for  additional information or  documentary material, or
the Antitrust Division and the FTC  terminate the waiting period prior  thereto.
If,  within such 15-day waiting period either  the Antitrust Division or the FTC
requests additional information  or material from  Varlen concerning the  Offer,
the  waiting period will  be extended and  would expire at  11:59 p.m., New York
City time, on the tenth calendar day after the date of substantial compliance by
Varlen with such request. Only one extension of the waiting period pursuant to a
request for additional information is authorized by the rules promulgated  under
the  HSR Act.  Thereafter, the  waiting period could  be extended  only by court
order or  with the  consent  of the  Purchaser. The  additional  10-calendar-day
waiting period may be terminated sooner by the FTC or the Antitrust Division. In
practice,  complying with a  request for additional  information or material can
take a significant  amount of time.  In addition, if  the Antitrust Division  or
 
                                       28
<PAGE>
the FTC raises substantive issues in connection with a proposed transaction, the
parties  frequently engage in negotiations with the relevant governmental agency
concerning possible means  of addressing  those issues  and may  agree to  delay
consummation  of the transaction while  such negotiations continue. Although the
Company is required to  file certain information  and documentary material  with
the  Antitrust Division and the FTC in connection with the Offer and the Merger,
neither the Company's failure  to make such  filings nor a  request made to  the
Company  from the  Antitrust Division or  the FTC for  additional information or
documentary material will extend the Offer  period with respect to the  purchase
of  Shares pursuant  to the Offer  and the Acquisition  Agreement. The Purchaser
will not accept  for payment Shares  tendered pursuant to  the Offer unless  and
until the waiting period requirements imposed by the HSR Act with respect to the
Offer have been satisfied. See Section 13.
 
    If  the acquisition of Shares is delayed pursuant to a request by the FTC or
the Antitrust  Division  for  additional  information  or  documentary  material
pursuant  to the HSR Act, the Offer may,  at the discretion of the Purchaser, be
extended and, in  any event,  the purchase  of and  payment for  Shares will  be
deferred  until ten  days after  the request  is substantially  complied with by
Varlen, unless the ten-day  extended period expires on  or before the date  when
the  initial waiting period  would otherwise have expired  or unless the waiting
period is sooner terminated by the  FTC and the Antitrust Division. See  Section
2.  Unless the Offer is  extended, any extension of  the waiting period will not
give rise to any additional withdrawal rights. See Section 3.
 
    The Antitrust Division and the FTC frequently scrutinize the legality  under
the  antitrust laws  of transactions  such as the  acquisition of  Shares by the
Purchaser pursuant to the Offer and the Merger. At any time before or after  the
Purchaser's  purchase of  Shares, the Antitrust  Division or the  FTC could take
such action under the antitrust laws  as either deems necessary or desirable  in
the public interest, including seeking to enjoin the purchase of Shares pursuant
to  the  Offer  and  the  Merger  or  seeking  divestiture  of  Shares purchased
thereunder or the divestiture of assets of the Company, the Purchaser, Varlen or
any of their respective subsidiaries or  affiliates. Private parties as well  as
state  attorneys general may  also bring legal actions  under the antitrust laws
under certain  circumstances. If  any  such action  by  the FTC,  the  Antitrust
Division  or any other person should  be instituted, the Purchaser could decline
to accept for payment any Shares tendered. See Section 13 for certain conditions
to the  Offer.  Based  upon  an  examination  of  information  relating  to  the
businesses in which Varlen and the Company are engaged, Varlen believes that the
consummation  of the Offer would not  violate any antitrust laws. However, there
can be no assurance that a challenge to the Offer on antitrust grounds will  not
be made or, if a challenge is made, what the result will be.
 
    The  Merger would not require an additional  filing under the HSR Act if the
Purchaser owns 50% or more of the  outstanding Shares at the time of the  Merger
or  if  the Merger  occurs  within one  year after  the  HSR Act  waiting period
applicable to the Offer expires or is terminated.
 
    STATE TAKEOVER LAWS
 
    The Company is  incorporated under the  laws of the  State of Virginia.  The
following  is a  summary of  certain provisions  of the  Virginia Act  which are
applicable to the Offer.
 
    SHAREHOLDER VOTE REQUIRED TO APPROVE FUNDAMENTAL ACTIONS.  Section  13.1-718
of  the Virginia Act provides that, except for certain parent-subsidiary mergers
(see "Introduction"  above),  certain  significant  corporate  actions  must  be
approved  by a vote of more than two-thirds  of the votes entitled to be cast on
the matter unless the corporation's  articles of incorporation specify a  higher
or  lower vote. These  matters include mergers  (with certain exceptions), share
exchanges, sales  of  all  or  substantially  all  of  a  corporation's  assets,
dissolutions  and  amendments  to  a  corporation's  articles  of  incorporation
("Fundamental Actions"). The Company's Charter currently provides that the  vote
required  to  approve  certain  Fundamental  Actions  constituting  a  "business
combination" (as defined therein) with a beneficial owner of 10% or more of  the
Shares  is 75% of  the Shares. See  "The Acquisition Agreement  -- The Offer and
Merger" in Section 11 above.
 
                                       29
<PAGE>
    AFFILIATED TRANSACTIONS  STATUTE.   Article  14  of the  Virginia  Act  (the
"Affiliated  Transactions Statute") generally prohibits a publicly held Virginia
corporation from engaging  in an  "affiliated transaction"  with an  "interested
shareholder"  for a period of  three years after the  date of the transaction in
which the person  became an  interested shareholder,  unless (i)  a majority  of
disinterested  directors  approved  in  advance  the  transaction  in  which the
interested shareholder became an interested  shareholder or (ii) the  affiliated
transaction   is  approved  by  the  affirmative  vote  of  a  majority  of  the
disinterested directors and the holders of two-thirds of the voting shares other
than the shares beneficially owned by the interested shareholder. A  corporation
may engage in an affiliated transaction with an interested shareholder beginning
three  years after  the date of  the transaction  in which the  person became an
interested shareholder, if  the transaction  is approved  by a  majority of  the
disinterested directors or by two-thirds of the disinterested shareholders or if
it complies with certain statutory fair price provisions.
 
    Subject  to  certain  exceptions,  under  the  Virginia  Act  an "interested
shareholder"  is  a  person  who,  together  with  affiliates  and   associates,
beneficially   owns  10%  or  more   of  the  corporation's  outstanding  voting
securities. "Affiliated transactions" include (i)  any merger or share  exchange
with  an interested shareholder; (ii) the transfer to any interested shareholder
of  corporate  assets  with  a  fair  market  value  greater  than  5%  of   the
corporation's  consolidated  net worth;  (iii)  the issuance  to  any interested
shareholder of voting shares  with a fair  market value greater  than 5% of  the
fair  market value of all outstanding voting shares of the corporation; (iv) any
reclassification of securities  or corporate reorganization  that will have  the
effect  of  increasing  by  5%  or  more  the  percentage  of  the corporation's
outstanding voting shares held by any  interested shareholder; and (v) any  plan
or  proposal for dissolution of the corporation  proposed by or on behalf of any
interested shareholder.
 
    Under certain circumstances, the Affiliated Transactions Statute may make it
more difficult for an interested shareholder to effect various transactions with
the Company, after the consummation of the Merger. These provisions may have the
effect of preventing changes in management and possibly making it more difficult
to accomplish transactions which shareholders may otherwise deem to be in  their
best interests.
 
    CONTROL  SHARE ACQUISITIONS STATUTE.  Article  14.1 of the Virginia Act (the
"Control Share Acquisitions Statute")  provides that shares  of a publicly  held
Virginia  corporation  that  are  acquired  in  a  "control  share  acquisition"
generally will have no voting rights  unless such rights are conferred on  those
shares  by  the vote  of a  majority of  all the  outstanding shares  other than
interested  shares.  A  control  share  acquisition  is  defined,  with  certain
exceptions,  as the  acquisition of  the beneficial  ownership of  voting shares
which would cause the acquirer to have voting power within the following  ranges
or  to move upward from one range into another: (i) 20% to 33 1/3%; (ii) 33 1/3%
to 50%; or (iii) more than 50%, of such votes.
 
    The foregoing summary of the provisions of the Virginia Act does not purport
to be complete and is qualified in  its entirety by reference to the  provisions
of the Virginia Act.
 
    The  Board of Directors of the Company has approved the Offer and the Merger
and recommended acceptance of  the Offer by holders  of Shares and approval  (if
required  by the Virginia Act)  by holders of Shares.  The Board of Directors of
the Company  has also  taken  actions to  exempt  Varlen, the  Purchaser,  their
respective  direct and indirect  subsidiaries and the Offer  and the Merger from
the restrictions  and  provisions of  the  Affiliated Transactions  Statute  and
Control   Share  Acquisitions  Statute  as   well  as  from  the  super-majority
shareholder vote provisions of Article I of the Company's Charter. In  addition,
in  connection with Section  13.1-730 (DISSENTER'S RIGHTS)  of the Virginia Act,
the Board of Directors of the Company  has approved the Merger by a majority  of
"disinterested  directors" (as defined in Section 13.1-725 of the Virginia Act).
See Section 11.
 
    In 1995, in WLR FOODS, INC. V. TYSON FOODS INC., the United States Court  of
Appeals  for the Fourth Circuit ruled that four Virginia anti-takeover statutes,
including the Affiliated  Transactions Statute, the  Control Share  Acquisitions
Statute, the "poison pill statute" and the "business judgment statute" contained
in  the Virginia Act are not preempted by applicable federal securities law, are
constitutional and, even  though the  statutes favor  incumbent management  over
bidders,  do not impermissibly restrict  the ability of a  bidder to take over a
Virginia corporation.
 
                                       30
<PAGE>
    A  number of  states have  adopted takeover  laws which  purport, to varying
degrees, to  be applicable  to attempts  to acquire  securities of  corporations
which are incorporated in such states or which have substantial assets, security
holders, principal executive offices or principal places of business therein. To
the  extent that certain provisions of  certain of these state takeover statutes
purport to apply to the  Offer or the Merger,  the Purchaser believes that  such
laws  conflict with  federal law  and constitute  an unconstitutional  burden on
interstate commerce. In 1982, the Supreme  Court of the United States, in  EDGAR
V.  MITE CORP., held  that the Illinois  Business Takeovers Statute,  which as a
matter of state securities law,  made takeovers of corporations meeting  certain
requirements more difficult, imposed a substantial burden on interstate commerce
and  therefore was unconstitutional. In 1987,  however, in CTS CORP. V. DYNAMICS
CORP. OF AMERICA, the Supreme Court of the United States held that the State  of
Indiana could, as a matter of corporate law and, in particular, those aspects of
corporate  law  concerning corporate  governance, constitutionally  disqualify a
potential acquiror from voting  on the affairs of  a target corporation  without
the  prior approval of the remaining  shareholders, provided that such laws were
applicable only under certain conditions. The state law before the Supreme Court
was by its terms applicable only  to corporations that had a substantial  number
of  stockholders in  the state  and were  incorporated therein.  Subsequently, a
number of  Federal  courts  ruled  that various  state  takeover  statutes  were
unconstitutional  insofar as they apply to corporations incorporated outside the
state of enactment.
 
    Except as described herein, the Purchaser does not know whether the Offer is
subject to any state takeover statutes and neither Varlen nor the Purchaser  has
attempted  to comply  with any  state takeover  statutes in  connection with the
Offer. Should any person seek to apply any such statute to the Offer, Varlen and
the Purchaser reserve the  right to challenge the  validity or applicability  of
any  state law allegedly  applicable to the  Offer and nothing  in this Offer to
Purchase nor any action taken in connection herewith is intended as a waiver  of
that  right. In the event that any state takeover statute is found applicable to
the Offer  and  an appropriate  court  does not  determine  that such  laws  are
inapplicable  or invalid as applied to the  Offer, the Purchaser may be required
to file certain information with, or receive approvals from, the relevant  state
authorities, or the Purchaser might be unable to purchase and accept for payment
or  pay for Shares tendered pursuant to the Offer or be delayed in continuing or
consummating the Offer. In the circumstances described above, the Purchaser  may
not  be  obligated to  accept for  purchase and  payment or  pay for  any Shares
tendered.
 
    16.    EXTENSION  OF  TENDER  PERIOD,  TERMINATION  AND  AMENDMENTS.     The
Acquisition  Agreement provides that the Offer may  not be amended to reduce the
price to be paid per Share, change the  form of consideration to be paid in  the
Offer  or the Merger, increase  the Minimum Condition or  amend the terms of the
Offer in a  manner that  is materially  adverse to  the holders  of the  Shares.
Subject to such restrictions, the Purchaser expressly reserves the right, in its
sole  discretion, at any  time from time to  time, to extend  the period of time
during which  the  Offer is  open  by giving  oral  or written  notice  of  such
extension  to  the  Depositary.  If  the Purchaser  shall  decide,  in  its sole
discretion, to increase  the consideration offered  in the Offer  to holders  of
Shares  or make any other  material change in the  terms of the Offer (including
the Minimum Condition) or  the information concerning  the Offer, the  Purchaser
will  disseminate additional tender offer materials  and extend the Offer to the
extent required  by Rules  14d-4(c) and  14d-6(d) under  the Exchange  Act.  The
minimum  period  during  which the  Offer  must remain  open  following material
changes in the  terms of the  Offer or information  concerning the Offer,  other
than  a change  in price or  a change  in percentage of  securities sought, will
depend upon the facts and  circumstances, including the relative materiality  of
the  terms or  information. With  respect to a  change in  price or  a change in
percentage of securities sought, a minimum ten-business day period from the date
of announcement  thereof is  required  to allow  for adequate  dissemination  to
shareholders  and  investor  response. If,  prior  to the  Expiration  Date, the
Purchaser should decide  to increase the  price per Share  being offered in  the
Offer,  such increase  will be applicable  to all shareholders  whose Shares are
accepted for payment pursuant to the Offer. As used in this Offer to  Purchaser,
"business day" has the meaning set forth in Rule 14d-1 under the Exchange Act.
 
                                       31
<PAGE>
    The Purchaser also expressly reserves the right (i) to delay payment for any
Shares, regardless of whether such Shares were theretofore accepted for payment,
or  to terminate the Offer and not accept  for payment or pay for any Shares not
theretofore accepted or paid for, upon  the occurrence of any of the  conditions
specified  in Section 13  by giving oral  notice thereof to  the Depositary, and
(ii) subject to the restrictions set forth in the Acquisition Agreement, at  any
time  or from time to time,  to amend the Offer in  any respect. See Section 13.
Any extension, delay,  termination, waiver  or amendment  of the  Offer will  be
followed,  as  soon as  practicable, by  public  announcement thereof,  and such
announcement in the case of  an extension will be  made in accordance with  Rule
14e-1(d)  no later than 9:00 a.m., New York  City time, on the next business day
after the previously scheduled expiration  date. Without limiting the manner  in
which  the Purchaser may  choose to make any  public announcement, the Purchaser
shall have no obligation to publish, advertise or otherwise communicate any such
public announcement other than by  making a release to  either the Dow Jones  or
Reuters News Services and making any appropriate filing with the Commission.
 
    If  the Purchaser extends the Offer, or  if the Purchaser (whether before or
after its acceptance for  payment of Shares)  is delayed in  its purchase of  or
payment  for Shares or is unable to pay for Shares pursuant to the Offer for any
reason, then, without prejudice to the  Purchaser's rights under the Offer,  the
Depositary  may  retain tendered  shares on  behalf of  the Purchaser,  and such
Shares may not  be withdrawn  except to  the extent  tendering shareholders  are
entitled to withdrawal rights as described in Section 3. However, the ability of
the  Purchaser to delay the payment for  Shares which the Purchaser has accepted
for payment is limited by Rule  14e-1(c) under the Exchange Act, which  requires
that  a bidder pay the consideration  offered or return the securities deposited
by or  on behalf  of holders  of securities  promptly after  the termination  or
withdrawal of the Offer.
 
    17.   CERTAIN FEES AND EXPENSES.   Lehman Brothers Inc. ("Lehman") is acting
as Dealer Manager for the Offer and as financial advisor to Varlen in connection
with the  transactions described  in  this Offer  to  Purchase. Pursuant  to  an
engagement  letter dated  March 15, 1996  (the "Engagement  Letter"), Varlen has
agreed to pay Lehman an advisory fee  in connection with the acquisition of  the
Company,  in one or a series or combination of transactions whereby, directly or
indirectly, control (i.e., 51% of the  Shares of the Company), or  substantially
all  of the  assets of the  Company or any  of its affiliates  is transferred to
Varlen or Purchaser or any of  their affiliates (an "Acquisition"), of 0.75%  of
the  gross value  of all  cash, securities and  other property  paid directly or
indirectly by Varlen and/or the Purchaser in connection with an Acquisition (the
"Consideration"); provided that the Acquisition  occurs on or prior to  December
31,  1998 (the "Termination Date"). Varlen has  further agreed that in the event
that Varlen or the Purchaser shall acquire less than 50% of the Shares but  more
than  20%  of the  Shares  outstanding on  a fully  diluted  basis prior  to the
Termination Date,  and during  such  period Varlen  or  Purchaser shall  have  a
designee  appointed to the Company's Board  of Directors, then Varlen has agreed
to pay to Lehman an advisory fee of  0.75% of the price paid by the Company  for
such  shares. Varlen has agreed to pay Lehman the foregoing fees as follows: (x)
one-third  upon  commencement  of  an   Acquisition  and  (y)  two-thirds   upon
consummation  of an Acquisition. Pursuant to the Dealer Manager Agreement, dated
June 20, 1996, Varlen  has also agreed to  pay Lehman a fee  equal to $.065  per
Share  for each  Share accepted  for payment  in the  Offer as  compensation for
serving as Dealer Manager for the  Offer, which amount will be credited  against
the  above-described advisory fee  being paid to Lehman  by Varlen. In addition,
Varlen has agreed  to reimburse  Lehman for its  reasonable expenses  (including
professional  fees and  expenses of  up to $10,000,  plus 50%  of its reasonable
professional fees and expenses in excess of $10,000, up to a maximum of $50,000)
and has agreed to indemnify Lehman  against certain liabilities and expenses  in
connection  with their  engagement. The  amount of  the total  advisory fees and
reimbursable expenses payable to  Lehman pursuant to  the Engagement Letter,  if
the  Acquisition  is  consummated, is  currently  estimated not  to  exceed $1.4
million.
 
    The Purchaser has retained D.F. King &  Co. to act as Information Agent  and
Harris  Trust Company of  New York to  act as Depositary  in connection with the
Offer. The Information Agent may contact  holders of Shares by mail,  telephone,
telex, telegraph and personal interview and may request
 
                                       32
<PAGE>
brokers,  dealers and other nominee shareholders to forward material relating to
the offer to beneficial  owners. The Information Agent  and the Depositary  will
receive reasonable and customary compensation for services relating to the Offer
in addition to reimbursement of reasonable out-of-pocket expenses. The Purchaser
has agreed to indemnify the Information Agent and the Depositary against certain
liabilities  and  expenses  in  connection  with  the  Offer  including  certain
liabilities under the federal securities laws.
 
    Neither Varlen nor  the Purchaser will  pay any fees  or commissions to  any
broker,  dealer or other  person (other than the  above-described fee to Lehman)
for soliciting  tenders  of Shares  pursuant  to the  Offer.  Brokers,  dealers,
commercial  banks and trust  companies will, upon request,  be reimbursed by the
Purchaser for reasonable and  necessary costs and expenses  incurred by them  in
forwarding materials to their customers.
 
    18.  MISCELLANEOUS.  The Purchaser is not aware of any jurisdiction in which
the  making  of the  Offer  is not  in compliance  with  applicable law.  If the
Purchaser becomes aware  of any jurisdiction  in which the  making of the  Offer
would  not be in compliance with applicable  law, the Purchaser will make a good
faith effort to  comply with  any such  law. If,  after good  faith effort,  the
Purchaser  cannot comply with any  such law, the Offer will  not be made to, nor
will tenders be accepted from or on behalf of, holders of Shares residing in any
jurisdiction in which the making of the Offer or acceptance thereof would not be
in compliance with the securities, blue sky or other laws of such  jurisdiction.
In  any jurisdiction the securities, blue sky or other laws of which require the
Offer to be made by a licensed broker or dealer, the Offer shall be deemed to be
made on  behalf of  the  Purchaser by  the  Dealer Manager  or  by one  or  more
registered brokers or dealers licensed under the laws of such jurisdiction.
 
    Varlen  and  the Purchaser  have filed  with the  Commission a  Tender Offer
Statement on Schedule 14D-1, together with  exhibits, pursuant to Rule 14d-3  of
the  General Rules  and Regulations under  the Exchange  Act, furnishing certain
additional information  with  respect to  the  Offer, and  may  file  amendments
thereto.  Such  Tender Offer  Statement  and any  amendments  thereto, including
exhibits, may be obtained in the manner  described in Section 8 with respect  to
information  concerning the  Company, except that  such information  will not be
available at the regional offices of the Commission.
 
    NO PERSON  HAS  BEEN AUTHORIZED  TO  GIVE ANY  INFORMATION  OR TO  MAKE  ANY
REPRESENTATION  ON BEHALF OF VARLEN OR THE PURCHASER NOT CONTAINED IN THIS OFFER
TO PURCHASE OR  IN THE LETTER  OF TRANSMITTAL AND,  IF GIVEN OR  MADE, ANY  SUCH
INFORMATION OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED.
 
                                                        BAS, Inc.
 
                                       33
<PAGE>
                                                                      SCHEDULE A
 
          DIRECTORS AND EXECUTIVE OFFICERS OF VARLEN AND THE PURCHASER
 
    The  names and principal business positions for  the past five years of each
director and  executive officer  of Varlen  are set  forth below.  The  business
address  of each such person is 55  Shuman Boulevard, P.O. Box 3089, Naperville,
Illinois 60566-7089. All persons listed below are citizens of the United  States
of America.
 
<TABLE>
<CAPTION>
                NAME                             PRINCIPAL BUSINESS POSITIONS FOR THE PAST FIVE YEARS
- ------------------------------------  ---------------------------------------------------------------------------
<S>                                   <C>
Richard L. Wellek                     Director;  President and Chief Executive Officer of Varlen since 1983. From
                                      1968 through 1983 he  held various executive  and operational positions  at
                                      Varlen.
 
Vicki L. Casmere                      Vice  President, General  Counsel and  Secretary since  April 1,  1996. Ms.
                                      Casmere served as Corporate Counsel of Caremark Inc. from 1992 to 1996  and
                                      as  Vice  President of  Caremark Inc.  from 1994  to 1996.  Previously, Ms.
                                      Casmere served as Corporate Counsel  of Baxter Healthcare Corporation  from
                                      1988 to 1992.
 
Rudolph Grua                          Director;  Vice Chairman of General  Binding Corporation, a manufacturer of
                                      business machines and related supplies,  since January 1995 and a  director
                                      since  May 1984. Prior  to January 1995,  Mr. Grua was  President and Chief
                                      Executive Officer of  General Binding  Corporation, positions  he had  held
                                      since May 1984.
 
George W. Hoffman                     Railroad  Group Vice President since 1990.  Mr. Hoffman was an Executive at
                                      Keystone Railway Equipment Company,  a subsidiary of  Varlen, from 1979  to
                                      1994.
 
Raymond A. Jean                       Executive   Vice  President   and  Chief  Operating   Officer  since  1993.
                                      Previously, Mr. Jean served as Group Vice President from 1988 to 1992.
 
Ernest H. Lorch                       Director; Of  Counsel  to  Whitman  Breed Abbott  &  Morgan,  attorneys,  a
                                      position  he has held since January 1993.  He retired as Chairman and Chief
                                      Executive Officer of The Dyson-Kissner-Moran Corporation ("DKM"), a private
                                      investment company,  in December  1992, a  position he  held since  January
                                      1992.  DKM owned approximately 30%  of the Common Stock  of Varlen prior to
                                      Varlen's purchase of all of the Varlen shares owned by DKM in January 1993.
                                      Mr. Lorch was President of DKM from June 1984 to January 1992. Mr. Lorch is
                                      also a director of Tyler Corporation, a retail supplier of automotive parts
                                      that also provides products for fundraising programs.
 
L. William Miles                      Director;  Vice  President  for  Administration  at  Fairfield  University,
                                      Connecticut,  a position he has held since July 1992. From February 1988 to
                                      June 1992 he was Senior Vice  President of Call Interactive, a provider  of
                                      interactive  telephone services.  Mr. Miles  is also  a director  of Bouton
                                      Corporation, a manufacturer of safety glasses.
 
Richard A. Nunemaker                  Vice President, Finance and Chief Financial Officer since 1991. Previously,
                                      Mr. Nunemaker served as Vice President and Controller from 1987 to 1991.
</TABLE>
 
                                      A-1
<PAGE>
<TABLE>
<CAPTION>
                NAME                             PRINCIPAL BUSINESS POSITIONS FOR THE PAST FIVE YEARS
- ------------------------------------  ---------------------------------------------------------------------------
Greg A. Rosenbaum                     Director; President of Palisades Associates,  Inc., a merchant banking  and
                                      consulting  company, since August  1989. Mr. Rosenbaum  is also director of
                                      Richey  Electronics,  Inc.,  a  distributor  of  electronic  components,  a
                                      position he has held since 1993.
<S>                                   <C>
 
Joseph J. Ross                        Director; Chairman, President and Chief Executive Officer of Federal Signal
                                      Corporation,  a manufacturer of public safety, signaling and communications
                                      equipment. He has been Chairman of  Federal Signal since February 1990  and
                                      has  served as  its President  and Chief  Executive Officer  since December
                                      1987.
 
Theodore A. Ruppert                   Director; For  more than  the last  five years,  a general  partner in  the
                                      Village  Development  Partnership,  a real  estate,  manufacturing  and oil
                                      development holding company; Chairman, Chief Executive Officer and director
                                      of Glaize Development Corporation, a real estate developer; and a  director
                                      of Pioneer Bank & Trust Company.
</TABLE>
 
                                      A-2
<PAGE>
               DIRECTORS AND EXECUTIVE OFFICERS OF THE PURCHASER
 
    The  names and principal business  positions for the past  five years of the
director and  executive officers  of  the Purchaser  are  set forth  below.  The
business  address of  each such  person is 55  Shuman Boulevard,  P.O. Box 3089,
Naperville, Illinois 60566-7089. All  persons listed below  are citizens of  the
United  States of America.  For further information  regarding such persons, see
"Directors and Executive Officers of Varlen."
 
<TABLE>
<CAPTION>
                NAME                                         POSITION
- ------------------------------------  -------------------------------------------------------
<S>                                   <C>
Richard L. Wellek                     Director and President
 
Richard A. Nunemaker                  Vice President and Treasurer
 
Vicki L. Casmere                      Vice President and Secretary
</TABLE>
 
                                      A-3
<PAGE>
    Facsimile copies of the Letter  of Transmittal, properly completed and  duly
executed,  will be accepted. The Letter  of Transmittal, certificates for Shares
and any other required documents should be sent or delivered by each shareholder
of the Company or his  broker, dealer, commercial bank  or other nominee to  the
Depositary at one of its addresses set forth below.
 
                        THE DEPOSITARY FOR THE OFFER IS:
 
                        HARRIS TRUST COMPANY OF NEW YORK
 
<TABLE>
<S>                       <C>                       <C>
                            ----------------
 
        BY MAIL:           BY OVERNIGHT COURIER:          BY HAND:
 
  Wall Street Station       77 Water Street, 4th       Receive Window
     P.O. Box 1010                 Floor            77 Water Street, 5th
   New York, New York     New York, New York 10005         Floor
       10268-1010                                    New York, New York
                                                           10005
                                BY FACSIMILE
                               TRANSMISSION:
                               (FOR ELIGIBLE
                             INSTITUTIONS ONLY)
                               (212) 701-7636
                               (212) 701-7637
 
                            CONFIRM FACSIMILE BY
                                 TELEPHONE:
 
                               (212) 701-7624
</TABLE>
 
                             ---------------------
 
    Any  questions or requests for assistance or additional copies of this Offer
to Purchase, the Letter  of Transmittal, the Notice  of Guaranteed Delivery  and
other  related materials may be directed to  the Information Agent or the Dealer
Manager at their respective  telephone numbers and  locations listed below.  You
may  also  contact your  broker,  dealer, commercial  bank  or trust  company or
nominee for assistance concerning the Offer.
 
                    THE INFORMATION AGENT FOR THE OFFER IS:
 
                             D.F. KING & CO., INC.
                                77 Water Street
                            New York, New York 10005
                            (212) 269-5550 (collect)
                                       or
 
                         Call Toll Free: 1-800-848-3402
 
                      THE DEALER MANAGER FOR THE OFFER IS:
 
                                LEHMAN BROTHERS
                            3 WORLD FINANCIAL CENTER
                            NEW YORK, NEW YORK 10285
                         (212) 526-2864 (CALL COLLECT)

<PAGE>
                             LETTER OF TRANSMITTAL
                        TO TENDER SHARES OF COMMON STOCK
 
                                       OF
 
                              BRENCO, INCORPORATED
 
                            PURSUANT TO THE OFFER TO
                          PURCHASE DATED JUNE 20, 1996
 
                                       BY
 
                                   BAS, INC.
 
                          A WHOLLY OWNED SUBSIDIARY OF
 
                               VARLEN CORPORATION
 
  THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY
         TIME, ON THURSDAY, JULY 18, 1996 UNLESS THE OFFER IS EXTENDED.
                        THE DEPOSITARY FOR THE OFFER IS:
 
                        HARRIS TRUST COMPANY OF NEW YORK
 
<TABLE>
<S>                           <C>                              <C>
          BY MAIL:                 BY OVERNIGHT COURIER:                  BY HAND:
    Wall Street Station         77 Water Street, 4th Floor             Receive Window
       P.O. Box 1010             New York, New York 10005        77 Water Street, 5th Floor
     New York, New York                                           New York, New York 10005
         10268-1010
</TABLE>
 
                           BY FACSIMILE TRANSMISSION:
                        (FOR ELIGIBLE INSTITUTIONS ONLY)
                                 (212) 701-7636
                                 (212) 701-7637
                        CONFIRM FACSIMILE BY TELEPHONE:
                                 (212) 701-7624
 
    DELIVERY OF THIS LETTER OF TRANSMITTAL TO AN ADDRESS OTHER THAN AS SET FORTH
ABOVE  OR TRANSMISSION OF INSTRUCTIONS VIA  FACSIMILE TRANSMISSION OTHER THAN AS
SET FORTH ABOVE WILL NOT CONSTITUTE A VALID DELIVERY.
 
    THE INSTRUCTIONS  ACCOMPANYING THIS  LETTER OF  TRANSMITTAL SHOULD  BE  READ
CAREFULLY BEFORE THIS LETTER OF TRANSMITTAL IS COMPLETED.
 
    This   Letter  of  Transmittal  is  to   be  completed  by  shareholders  if
certificates for Shares  (as defined  below) are  to be  forwarded herewith  or,
unless  an Agent's Message (as defined in Section 4 of the Offer to Purchase) is
utilized, if delivery  of Shares is  to be  made by book-entry  transfer to  the
accounts  maintained by  Harris Trust  Company of  New York,  as Depositary (the
"Depositary"), at The  Depository Trust Company  or the Philadelphia  Depository
Trust  Company  (each  a  "Book-Entry Transfer  Facility"  and  collectively the
"Book-Entry Transfer  Facilities")  pursuant  to the  procedures  set  forth  in
Section  4 of the  Offer to Purchase.  Holders of Shares  whose certificates for
Shares are not immediately available, or who are unable to deliver their  Shares
or  confirmation of the book-entry tender  of their Shares into the Depositary's
account at a Book-Entry  Transfer Facility ("Book  Entry Confirmation") and  all
other  documents required by this Letter of  Transmittal to the Depositary on or
prior   to   the    Expiration   Date    (as   defined   in    the   Offer    to
<PAGE>
Purchase),  must  tender  their  Shares  according  to  the  guaranteed delivery
procedure set forth in Section  4 of the Offer  to Purchase. See Instruction  2.
DELIVERY  OF DOCUMENTS  TO A  BOOK-ENTRY TRANSFER  FACILITY DOES  NOT CONSTITUTE
DELIVERY TO THE DEPOSITARY.
 
<TABLE>
<S>        <C>
/ /        CHECK HERE IF TENDERED SHARES  ARE BEING DELIVERED BY  BOOK-ENTRY TRANSFER MADE TO  THE ACCOUNT MAINTAINED BY  THE
           DEPOSITARY  WITH A  BOOK-ENTRY TRANSFER  FACILITY AND COMPLETE  THE FOLLOWING  (ONLY PARTICIPANTS  IN A BOOK-ENTRY
           TRANSFER FACILITY MAY DELIVER SHARES BY BOOK-ENTRY TRANSFER):
 
           Name of Tendering Institution ....................................................................................
           Check box of Book-Entry Transfer Facility:
           / / The Depository Trust Company
           / / Philadelphia Depository Trust Company
 
           Account Number ...................................................................................................
           Transaction Code Number ..........................................................................................
 
/ /        CHECK HERE IF TENDERED SHARES ARE BEING DELIVERED PURSUANT  TO A NOTICE OF GUARANTEED DELIVERY PREVIOUSLY SENT  TO
           THE DEPOSITARY AND COMPLETE THE FOLLOWING. PLEASE ENCLOSE A PHOTOCOPY OF SUCH NOTICE OF GUARANTEED DELIVERY.
 
           Name(s) of Registered Owner(s) ...................................................................................
           Window Ticket Number (if any) ....................................................................................
           Date of Execution of Notice of Guaranteed Delivery ...............................................................
           Name of Institution which Guaranteed Delivery ....................................................................
           If delivered by Book-Entry Transfer, check box of Book-Entry Transfer Facility:
           / / The Depository Trust Company
           / / Philadelphia Depository Trust Company
 
           Account Number ...................................................................................................
           Transaction Code Number ..........................................................................................
</TABLE>
 
<TABLE>
<S>                                                 <C>                   <C>                   <C>
                                           DESCRIPTION OF TENDERED SHARES
  NAME(S) AND ADDRESS(ES) OF REGISTERED OWNER(S)               SHARE CERTIFICATE(S) AND SHARE(S) TENDERED
  (PLEASE FILL IN, IF BLANK, EXACTLY AS NAME(S)               (ATTACH ADDITIONAL SIGNED LIST IF NECESSARY)
         APPEAR(S) ON SHARE CERTIFICATES)
                                                        CERTIFICATE         TOTAL NUMBER OF          NUMBER OF
                                                         NUMBER(S)*        SHARES REPRESENTED    SHARES TENDERED**
                                                                           BY CERTIFICATE(S)*
                                                        TOTAL SHARES
 * NEED NOT BE COMPLETED BY SHAREHOLDERS DELIVERING SHARES BY BOOK-ENTRY TRANSFER.
**  UNLESS OTHERWISE INDICATED, IT WILL BE ASSUMED THAT  ALL SHARES REPRESENTED BY ANY CERTIFICATES DELIVERED TO THE
   DEPOSITARY ARE BEING TENDERED. SEE INSTRUCTION 4.
</TABLE>
 
                    NOTE: SIGNATURES MUST BE PROVIDED BELOW.
              PLEASE READ THE ACCOMPANYING INSTRUCTIONS CAREFULLY.
 
Ladies and Gentlemen:
 
    The undersigned hereby  tenders to  BAS, Inc., a  Virginia corporation  (the
"Purchaser")  and a  wholly owned subsidiary  of Varlen  Corporation, a Delaware
corporation ("Varlen"), the  above-described shares of  Common Stock, par  value
$1.00  per share (the "Shares"), of Brenco, Incorporated, a Virginia corporation
(the "Company"), pursuant to the  Purchaser's offer to purchase all  outstanding
Shares  at a price of $16.125 per Share,  net to the seller in cash, without any
interest, upon the terms and subject to the conditions set forth in the Offer to
Purchase dated June 20,  1996 (the "Offer  to Purchase") and  in this Letter  of
Transmittal (which together constitute the "Offer"), receipt of which are hereby
acknowledged.  The undersigned understands that the Purchaser reserves the right
to transfer or assign, in whole or from  time to time in part, to Varlen or  one
or  more of its other direct or  indirect wholly owned subsidiaries the right to
purchase all or any portion of the Shares tendered pursuant to the Offer.
 
    Subject to,  and  effective upon,  acceptance  for payment  for  the  Shares
tendered  herewith in accordance with the terms and subject to the conditions of
the Offer, the undersigned hereby sells, assigns, and transfers to, or upon  the
order  of, the Purchaser all right, title and  interest in and to all the Shares
that are  being  tendered  hereby  (and  any and  all  other  Shares  and  other
securities  and  property issued  or  issuable or  distributed  or distributable
(other than the Company's regular quarterly  dividend of not more than $.07  per
Share) in respect thereof on or after June 15, 1996 and prior to the transfer to
the  name of  the Purchaser  or nominee  or transferee  of the  Purchaser on the
Company's stock transfer records of the Shares tendered herewith  (collectively,
a  "Distribution")), and irrevocably constitutes and appoints the Depositary the
true and lawful agent  and attorney-in-fact of the  undersigned with respect  to
such  Shares (and any Distribution) with  full power of substitution (such power
of attorney being deemed  to be an irrevocable  power coupled with an  interest)
to: (i) deliver certificates for such Shares (and any Distribution), or transfer
ownership  of such Shares (and any Distribution) on the account books maintained
by  a  Book-Entry  Transfer  Facility,  together  in  any  such  case  with  all
accompanying evidences of transfer and authenticity, to or upon the order of the
Purchaser,  upon receipt by  the Depositary, as the  undersigned's agent, of the
purchase price (adjusted, if appropriate, as provided in the Offer to Purchase);
(ii) present such Shares (and any Distribution) for transfer on the books of the
Company; and (iii)  receive all benefits  and otherwise exercise  all rights  of
beneficial  ownership of such  Shares (and any  Distribution), all in accordance
with the terms and subject to the conditions of the Offer.
 
    The undersigned hereby irrevocably appoints the Purchaser, its officers  and
its  designees,  and each  of  them, the  attorneys-in-fact  and proxies  of the
undersigned, each with full  power of substitution, to  exercise all voting  and
other rights of the undersigned in such manner as each such attorney-in-fact and
proxy  or the substitute  for any such  attorney-in-fact and proxy  shall in the
sole discretion of each such attorney-in-fact and proxy or his substitutes  deem
proper,  and otherwise act (including pursuant  to written consent) with respect
to all of  the Shares  tendered hereby (and  any Distribution)  which have  been
accepted  for payment by the  Purchaser prior to the time  of such vote or other
action and  which  the  undersigned  is  entitled to  vote  at  any  meeting  of
shareholders  (whether  annual  or  special  and  whether  or  not  an adjourned
meeting), or consent in lieu  of any such meeting,  or otherwise. THIS PROXY  IS
IRREVOCABLE AND COUPLED WITH AN INTEREST AND IS GRANTED IN CONSIDERATION OF, AND
IS  EFFECTIVE UPON, THE ACCEPTANCE  FOR PAYMENT OF SUCH  SHARES BY THE PURCHASER
<PAGE>
IN ACCORDANCE WITH  THE TERMS OF  THE OFFER. SUCH  ACCEPTANCE FOR PAYMENT  SHALL
REVOKE,  WITHOUT FURTHER ACTION, ANY OTHER POWER OF ATTORNEY AND/ OR PROXY GIVEN
BY  THE  UNDERSIGNED  AT  ANY  TIME  WITH  RESPECT  TO  SUCH  SHARES  (AND   ANY
DISTRIBUTION)  AND NO SUBSEQUENT POWER OF ATTORNEY OR PROXY MAY BE GIVEN (AND IF
GIVEN WILL  NOT BE  EFFECTIVE)  WITH RESPECT  THERETO  BY THE  UNDERSIGNED.  The
undersigned  understands  that the  Purchaser  expressly reserves  the  right to
require that, in order for Shares  to be validly tendered, immediately upon  the
Purchaser's  acceptance for payment  of such Shares  (and any Distribution), the
Purchaser is able to exercise  full voting rights and  other rights of a  record
and  beneficial holder thereof, including rights in respect of acting by written
consent with respect  to such  Shares (and any  Distribution) or  voting at  any
meeting of shareholders.
 
    The undersigned hereby represents and warrants that: (i) the undersigned has
full  power  and  authority to  tender,  sell,  assign and  transfer  the Shares
tendered hereby (and any Distribution) and  (ii) when the same are accepted  for
payment  by  the  Purchaser, the  Purchaser  will acquire  good,  marketable and
unencumbered title thereto, free and  clear of all liens, restrictions,  charges
and  encumbrances and  the same will  not be  subject to any  adverse claim. The
undersigned, upon request,  will execute  and deliver  any additional  documents
deemed  by the Depositary, the Purchaser or  Varlen to be necessary or desirable
to complete the sale, assignment and transfer of the Shares tendered hereby (and
any Distribution).  In  addition,  the  undersigned  shall  promptly  remit  and
transfer  to the Depositary  for the account  of the Purchaser  the whole of any
dividend (other than the Company's regular  quarterly dividend of not more  than
$.07  per  Share),  distribution,  interest  payment  or  right  issued  to  the
undersigned on or after June 15, 1996, in respect of the Shares tendered hereby,
accompanied by appropriate documentation  of transfer. Pending such  remittance,
the  Purchaser shall be  entitled to all  rights and privileges  as owner of any
such dividend,  distribution, interest  payment or  right and  may withhold  the
entire  purchase price  or deduct  from the purchase  price the  amount or value
thereof, as determined by the Purchaser in its sole discretion.
 
    All authority herein conferred or agreed  to be conferred in this Letter  of
Transmittal shall not be affected by, and shall survive, the death or incapacity
of  the undersigned,  and any obligation  of the undersigned  hereunder shall be
binding upon the successors, assigns, heirs, executors, administrators and legal
representatives of the undersigned. Except as  stated in the Offer to  Purchase,
this tender is irrevocable.
 
    The undersigned understands that the tender of Shares pursuant to any of the
procedures  described  in  Section  4  of  the  Offer  to  Purchase  and  in the
instructions hereto will  constitute the tendering  shareholder's acceptance  of
the  terms and conditions of  the Offer, as well  as the tendering shareholder's
representation and  warranty  that  such  shareholder has  the  full  power  and
authority  to tender and  assign the Shares tendered  (and any Distribution), as
specified in this Letter of Transmittal. The Purchaser's acceptance for  payment
of  Shares pursuant to the Offer will constitute a binding agreement between the
tendering shareholder  and the  Purchaser  upon the  terms  and subject  to  the
conditions of the Offer.
 
    Unless  otherwise  indicated  herein under  "Special  Payment Instructions,"
please issue the check for the purchase price and/or any certificates for Shares
not tendered  or  accepted  for  payment in  the  name(s)  of  the  undersigned.
Similarly,  unless  otherwise indicated  under "Special  Delivery Instructions,"
please mail the check for the purchase price and/or return any certificates  for
Shares  not tendered  or accepted  for payment  (and accompanying  documents, as
appropriate) to the  undersigned at  the address shown  below the  undersigned's
signature.  In the  event that  both the  Special Delivery  Instructions and the
Special Payment  Instructions are  completed,  please issue  the check  for  the
purchase  price  and/or  return  any certificates  for  Shares  not  tendered or
accepted for payment  in the name(s)  of, and deliver  said check and/or  return
such  certificates  to,  the person  or  persons so  indicated.  The undersigned
recognizes that the Purchaser has no obligation pursuant to the Special  Payment
Instructions  to  transfer any  Shares from  the name  of the  registered holder
thereof if  the Purchaser  does not  accept for  payment any  of the  Shares  so
tendered.
 
<PAGE>
                          SPECIAL PAYMENT INSTRUCTIONS
                        (SEE INSTRUCTIONS 1, 5, 6 AND 7)
 
     To  be  completed ONLY  if  certificates for  Shares  not tendered  or not
 purchased and/or the check for the  purchase price of Shares purchased are  to
 be issued in the name of someone other than the undersigned.
 
 Issue                    / / check                    / / certificates to:
 
 Name  ........................................................................
                                    (Please Print)
 
 Address  .....................................................................
 
  .............................................................................
                               (Include Zip Code)
 
  .............................................................................
              (Taxpayer Identification or Social Security Number)
                           (See Substitute Form W-9)
                         SPECIAL DELIVERY INSTRUCTIONS
                        (SEE INSTRUCTIONS 1, 5, 6 AND 7)
 
     To  be  completed ONLY  if  certificates for  Shares  not tendered  or not
 purchased and/or the check for the  purchase price of Shares purchased are  to
 be  sent to someone  other than the  undersigned, or to  the undersigned at an
 address other than that shown above.
 
 Mail / / check         / / certificates to:
 
 Name  ........................................................................
                                 (Please Print)
 
 Address  .....................................................................
 
  .............................................................................
                               (Include Zip Code)
 
                                   IMPORTANT
 
                                   SIGN HERE
                 (COMPLETE SUBSTITUTE FORM W-9 ON REVERSE SIDE)
 
  .............................................................................
 
  .............................................................................
                            Signature(s) of Owner(s)
 
 Dated:  ............................................................... , 1996
 
     (Must be signed  by registered  owner(s) exactly as  name(s) appear(s)  on
 certificate(s)  for Shares or  on a security position  listing or by person(s)
 authorized  to  become  registered  owner(s)  by  certificates  and  documents
 transmitted  herewith. If signature is by trustees, executors, administrators,
 guardians, attorneys-in-fact,  agents,  officers  of  corporations  or  others
 acting in a fiduciary or representative capacity, please provide the following
 information. See Instruction 5.)
 
 Name(s) ......................................................................
 
  .............................................................................
                                 (Please Print)
 
 Capacity (full title)  .......................................................
 
 Address   ....................................................................
 
  .............................................................................
 
  .............................................................................
                               (Include Zip Code)
 
 Area Code and Telephone Numbers  .............................................
 Taxpayer Identification
   or Social Security No.  ....................................................
     (See Substitute Form W-9)
 
                           GUARANTEE OF SIGNATURE(S)
                           (See Instructions 1 and 5)
 
 Name  ........................................................................
                                 (Please Print)
 
 Authorized Signature  ........................................................
 
 Name of Firm  ................................................................
 
 Address  .....................................................................
 
  .............................................................................
                              (including Zip Code)
 
 Area Code and Telephone Number  ..............................................
 
 Dated:  ............................................................... , 1996
<PAGE>
                 TO BE COMPLETED BY ALL TENDERING STOCKHOLDERS
                              (SEE INSTRUCTION 9)
 
<TABLE>
<S>                                 <C>                                  <C>               <C>
                                     PAYER'S NAME: HARRIS TRUST COMPANY OF NEW YORK
SUBSTITUTE                          PART 1 - PLEASE PROVIDE YOUR TIN IN       ------------------------------------
FORM W-9                            THE  BOX  AT RIGHT  AND  CERTIFY BY              Social Security Number
DEPARTMENT OF THE TREASURY,         SIGNING AND DATING BELOW.                                  OR
INTERNAL REVENUE SERVICE                                                      ------------------------------------
                                                                                 Employer Identification Number
PAYER'S REQUEST FOR TAXPAYER        PART 2 - Certification - Under Penalties of  Perjury,  PART 3 -
IDENTIFICATION NUMBER (TIN)         I certify that:                                        Awaiting
                                    (1)   The  number shown  on this  form is  my correct  TIN         / /
                                         Taxpayer Identification Number (or I am  waiting
                                         for a number to be issued to me and have checked
                                         the box in Part 3) and
                                    (2)   I am not subject to backup withholding because:
                                    (a) I am  exempt from  backup withholding,  or (b)  I
                                         have  not been notified  by the Internal Revenue
                                         Service (the "IRS") that I am subject to  backup
                                         withholding  as a result of  a failure to report
                                         all interest or  dividends, or (c)  the IRS  has
                                         notified  me  that  I am  no  longer  subject to
                                         backup withholding.
                                    CERTIFICATION INSTRUCTIONS -  You must cross  out item  (2) above if  you have  been
                                    notified  by the IRS that you are currently subject to backup withholding because of
                                    underreporting interest or  dividends on your  tax return. However,  if after  being
                                    notified by the IRS that you were subject to backup withholding you received another
                                    notification  from the IRS that you are  no longer subject to backup withholding, do
                                    not cross out such item (2).
                                    SIGNATURE  DATE
</TABLE>
 
 NOTE:  FAILURE  TO  COMPLETE  AND  RETURN  THIS  FORM  MAY  RESULT  IN  BACKUP
        WITHHOLDING  OF 31% OF ANY PAYMENTS MADE  TO YOU PURSUANT TO THE OFFER.
        PLEASE REVIEW  THE ENCLOSED  GUIDELINES FOR  CERTIFICATION OF  TAXPAYER
        IDENTIFICATION NUMBER ON SUBSTITUTE FORM W-9 FOR ADDITIONAL DETAILS.
 
               YOU MUST COMPLETE THE FOLLOWING CERTIFICATE IF YOU
               CHECKED THE BOX IN PART 3 OF SUBSTITUTE FORM W-9.
<PAGE>
             CERTIFICATE OF AWAITING TAXPAYER IDENTIFICATION NUMBER
 
 I certify under penalties of perjury that a Taxpayer Identification Number has
 not  been  issued  to  me,  and  either (1)  I  have  mailed  or  delivered an
 application to receive  a Taxpayer  Identification Number  to the  appropriate
 Internal  Revenue Service Center  or Social Security  Administration Office or
 (2) I  intend  to  mail or  deliver  an  application in  the  near  future.  I
 understand  that if I do  not provide a Taxpayer  Identification Number by the
 time of payment, 31% of all reportable  payments made to me will be  withheld,
 but  that such  amounts will be  refunded to me  if I then  provide a Taxpayer
 Identification Number within sixty (60) days.
 _________________________________      _________________________________, 1996
              Signature                                                     Date
<PAGE>
                                  INSTRUCTIONS
             FORMING PART OF THE TERMS AND CONDITIONS OF THE OFFER
 
    1.   GUARANTEE OF  SIGNATURES.  No  signature guarantee is  required on this
Letter of  Transmittal  (a) if  this  Letter of  Transmittal  is signed  by  the
registered  holder(s) (which term, for purposes  of this document, shall include
any participant  in a  Book-Entry  Transfer Facility  whose  name appears  on  a
security  position listing as the owner  of Shares) of Shares tendered herewith,
unless such holder(s)  has completed  either the box  entitled "Special  Payment
Instructions"  or the box entitled "Special Delivery Instructions" above, or (b)
if such Shares are tendered for the account  of a firm which is a bank,  broker,
dealer,  credit union, savings association or other  entity which is a member in
good standing of a recognized Medallion Signature Guarantee Program (each of the
foregoing being referred to as an  "Eligible Institution"). In all other  cases,
all  signatures on this Letter of Transmittal  must be guaranteed by an Eligible
Institution. See Instruction 5 of this Letter of Transmittal.
 
    2.  REQUIREMENTS OF TENDER.  This  Letter of Transmittal is to be  completed
by  shareholders either if certificates are  to be forwarded herewith or, unless
an Agent's  Message is  utilized, if  tenders are  to be  made pursuant  to  the
procedure  for tender by book-entry transfer set forth in Section 4 of the Offer
to Purchase.  Certificates  for  tendered  Shares,  or  timely  confirmation  (a
"Book-Entry  Confirmation") of  a book-entry  transfer of  such Shares  into the
Depositary's account at a Book-Entry Transfer  Facility, as well as this  Letter
of  Transmittal (or  a facsimile hereof),  properly completed  and duly executed
with any required signature guarantees, or an Agent's Message in connection with
a book-entry  transfer, and  any  other documents  required  by this  Letter  of
Transmittal,  must be  received by  the Depositary at  one of  its addresses set
forth on the front page  of this Letter of  Transmittal prior to the  Expiration
Date.  Shareholders  whose certificates  are  not immediately  available  or who
cannot deliver  their  certificates and  all  other required  documents  to  the
Depositary prior to the Expiration Date or who cannot complete the procedure for
delivery  by book-entry transfer  on a timely  basis may tender  their Shares by
properly completing and duly executing a Notice of Guaranteed Delivery  pursuant
to  the guaranteed  delivery procedure set  forth in  Section 4 of  the Offer to
Purchase. Pursuant to such procedure: (i) such tender must be made by or through
an Eligible Institution; (ii) a properly  completed and duly executed Notice  of
Guaranteed  Delivery, substantially in the form made available by the Purchaser,
must be received by the Depositary prior  to the Expiration Date; and (iii)  the
certificates (or a Book-Entry Confirmation) representing all tendered Shares, in
proper  form for transfer, in each case  together with the Letter of Transmittal
(or a facsimile thereof), properly completed and duly executed with any required
signature guarantees  (or, in  the case  of a  book-entry delivery,  an  Agent's
Message) and any other documents required by this Letter of Transmittal, must be
received  by  the Depositary  within  three National  Association  of Securities
Dealers, Inc. Automated  Quotation System ("NASDAQ  System") trading days  after
the date of execution of such Notice of Guaranteed Delivery. If certificates are
forwarded  separately to the Depositary, a  properly completed and duly executed
Letter of Transmittal must accompany each such delivery.
 
    THE METHOD OF  DELIVERY OF CERTIFICATES  FOR SHARES AND  ALL OTHER  REQUIRED
DOCUMENTS,  INCLUDING DELIVERY THROUGH  ANY BOOK-ENTRY TRANSFER  FACILITY, IS AT
THE OPTION AND RISK OF THE  TENDERING SHAREHOLDER. DELIVERY WILL BE DEEMED  MADE
ONLY  WHEN  ACTUALLY  RECEIVED  BY  THE  DEPOSITARY.  IF  DELIVERY  IS  BY MAIL,
REGISTERED MAIL WITH RETURN RECEIPT REQUESTED, PROPERLY INSURED, IS RECOMMENDED.
IN ALL CASES, SUFFICIENT TIME SHOULD BE ALLOWED TO ENSURE TIMELY DELIVERY.
 
    No alternative, conditional or contingent  tenders will be accepted, and  no
fractional  Shares will be purchased (unless you are tendering all of the Shares
you own). All tendering shareholders, by execution of this Letter of Transmittal
(or a facsimile hereof), waive any right to receive any notice of the acceptance
of their Shares for payment.
 
    3.   INADEQUATE SPACE.   If  the space  provided herein  is inadequate,  the
certificate  number(s)  and/or  the  number of  Shares  and  any  other required
information should be listed on a separate signed schedule attached hereto.
 
    4.   PARTIAL  TENDERS.    (NOT APPLICABLE  TO  SHAREHOLDERS  WHO  TENDER  BY
BOOK-ENTRY  TRANSFER.)  If  fewer  than  all  of  the  Shares  evidenced  by any
certificate delivered to the Depositary are  to be tendered, fill in the  number
of  Shares  which are  to  be tendered  in the  box  entitled "Number  of Shares
Tendered." In such  a case, new  Share certificate(s) for  the Shares that  were
evidenced  by your old Share certificate(s), but  were not tendered by you, will
be sent to you (unless otherwise provided in the appropriate box on this  Letter
of  Transmittal) as  soon as practicable  after the Expiration  Date. All Shares
represented by certificates delivered to the  Depositary will be deemed to  have
been tendered unless otherwise indicated.
 
    5.   SIGNATURES ON LETTER OF TRANSMITTAL, STOCK POWERS AND ENDORSEMENTS.  If
this Letter of Transmittal is signed  by the registered holder(s) of the  Shares
tendered hereby, the signature(s) must correspond with the name(s) as written on
the  face of  the certificate(s) without  alteration, enlargement  or any change
whatsoever.
 
    If any of  the Shares tendered  hereby are owned  of record by  two or  more
joint owners, all such owners must sign this Letter of Transmittal.
 
    If  any of the tendered Shares are  registered in different names on several
certificates, it will be necessary to complete, sign and submit as many separate
Letters of Transmittal as there are different registrations of certificates.
 
    If this Letter of Transmittal or any certificates or stock powers are signed
by trustees, executors,  administrators, guardians, attorneys-in-fact,  officers
of corporations or others acting in a fiduciary or representative capacity, such
persons should so indicate when signing, and proper evidence satisfactory to the
Purchaser of their authority so to act must be submitted.
 
    If  this Letter of Transmittal is signed  by the registered holder(s) of the
Shares listed  and  transmitted  hereby,  no  endorsements  of  certificates  or
separate  stock  powers  are  required  unless  payment  is  to  be  made  to or
certificates for Shares not tendered  or not purchased are  to be issued in  the
name  of  a  person other  than  the  registered holder(s).  Signatures  on such
certificates or stock powers must be guaranteed by an Eligible Institution.
 
    If this  Letter  of  Transmittal  is  signed by  a  person  other  than  the
registered  holder(s) of the  certificate(s) listed, the  certificate(s) must be
endorsed or  accompanied by  appropriate  stock powers,  in either  case  signed
exactly  as the name(s) of the registered holder(s) appear on the certificate(s)
for such  Shares.  Signatures on  such  certificates  or stock  powers  must  be
guaranteed by an Eligible Institution.
 
    6.   STOCK TRANSFER TAXES.  Except as otherwise provided in this Instruction
6, the Purchaser  will pay or  cause to be  paid any stock  transfer taxes  with
respect  to the transfer and sale  of Shares to it or  its order pursuant to the
Offer. If, however, payment of
<PAGE>
the purchase  price is  to  be made  to, or  if  certificate(s) for  Shares  not
tendered or accepted for payment are to be registered in the name of, any person
other than the registered holder(s), if a transfer tax is imposed for any reason
other than the sale or transfer of Shares to Purchaser pursuant to the Offer, or
if  tendered certificate(s) are registered in the  name of any person other than
the person(s)  signing this  Letter  of Transmittal,  the  amount of  any  stock
transfer  taxes (whether  imposed on  the registered  holder(s) or  such person)
payable on account  of the transfer  to such  person will be  deducted from  the
purchase  price unless satisfactory evidence of the  payment of such taxes or an
exemption therefrom, is submitted.
 
    Except as otherwise provided in this Instruction 6, it will not be necessary
for transfer  tax stamps  to be  affixed to  the certificate(s)  listed in  this
Letter of Transmittal.
 
    7.    SPECIAL PAYMENT  AND  DELIVERY INSTRUCTIONS.    If the  check  for the
purchase price  of any  Shares purchased  is to  be issued,  or any  Shares  not
tendered or not purchased are to be returned, in the name of a person other than
the  person(s)  signing this  Letter  of Transmittal,  or  if the  check  or any
certificates for  Shares not  tendered or  not  purchased are  to be  mailed  to
someone  other than the person(s)  signing this Letter of  Transmittal or to the
person(s) signing this Letter of Transmittal at an address other than that shown
above, the appropriate boxes on this Letter of Transmittal should be  completed.
Shareholders tendering Shares by book-entry transfer may request that Shares not
purchased  be  credited  to  such  account at  any  of  the  Book-Entry Transfer
Facilities  as   such  shareholder   may   designate  under   "Special   Payment
Instructions."  If no such instructions are given, any such Shares not purchased
will be returned by crediting the account at the Book-Entry Transfer  Facilities
designated above.
 
    8.   IRREGULARITIES.   All  questions as  to the  form of  documents and the
validity, eligibility (including time of receipt) and acceptance for payment  of
any  tender  of  Shares  will  be  determined  by  the  Purchaser,  in  its sole
discretion, which  determination  shall  be final  and  binding.  The  Purchaser
reserves the absolute right to reject any or all tenders of Shares determined by
it  not to be  in proper form  or the acceptance  for payment of  or payment for
tenders of  Shares which  may, in  the opinion  of the  Purchaser's counsel,  be
unlawful.  The Purchaser also reserves the absolute right to waive any defect or
irregularity in any tender of Shares. No tender of Shares will be deemed to have
been properly made until  all defects and  irregularities relating thereto  have
been cured or waived. The Purchaser's interpretation of the terms and conditions
of  the Offer in this  regard will be final and  binding. None of the Purchaser,
the Dealer Manager, the  Depositary, the Information Agent  or any other  person
will  be under any  duty to give  notification of any  defect or irregularity in
tenders or incur any liability for failure to give any such notification.
 
    9.  31% BACKUP WITHHOLDING; SUBSTITUTE FORM W-9.  Under U.S. Federal  income
tax  law,  a  shareholder whose  tendered  Shares  are accepted  for  payment is
required to provide the Depositary with a correct Taxpayer Identification Number
("TIN"),  generally  the  shareholder's  social  security  or  federal  employer
identification  number, on  Substitute Form  W-9 below.  Failure to  provide the
information on the form may subject the tendering shareholder or other payee  to
a  $50 penalty. In addition, payments that are made to such shareholder or other
payee with respect to Shares purchased pursuant  to the Offer may be subject  to
31% federal income tax withholding on the payment of the purchase price.
 
    Certain  shareholders (including, among others, all corporations and certain
foreign individuals) are not subject  to these backup withholding and  reporting
requirements.  In order for a foreign individual to qualify an exempt recipient,
the shareholder  must submit  a Form  W-8, signed  under penalties  of  perjury,
attesting  that individual's exempt status. A Form  W-8 can be obtained from the
Depositary.  See  the  enclosed   "Guidelines  for  Certification  of   Taxpayer
Identification Number on Substitute Form W-9" for additional instructions.
 
    Backup  withholding is not  an additional tax. Rather,  the tax liability of
persons subject  to backup  withholding will  be reduced  by the  amount of  tax
withheld.  If withholding results  in an overpayment  of taxes, a  refund may be
obtained from the Internal Revenue Service.
 
    To prevent backup  withholding on payments  that are made  to a  shareholder
with  respect  to Shares  purchased pursuant  to the  Offer, the  shareholder is
required  to  notify  the  Depositary  of  such  shareholder's  correct  TIN  by
completing  the Substitute Form W-9 certifying (i)  that the TIN provided on the
Substitute Form W-9 is correct (or that such shareholder is awaiting a TIN)  and
(ii)  that (a) such  shareholder has not  been notified by  the Internal Revenue
Service that such shareholder is subject to backup withholding as a result of  a
failure  to report all interest or dividends or (b) the Internal Revenue Service
has notified such  shareholder that  such shareholder  is no  longer subject  to
backup withholding.
 
    The box in part 3 of the Substitute Form W-9 may be checked if the tendering
shareholder  has not been issued a  TIN and has applied for  a TIN or intends to
apply for  a TIN  in the  near future.  If the  box in  Part 3  is checked,  the
shareholder  or  other  payee must  also  complete the  Certificate  of Awaiting
Taxpayer  Identification   Number  in   order  to   avoid  backup   withholding.
Notwithstanding  that  the box  in  part 3  is  checked and  the  Certificate of
Awaiting Taxpayer  Identification Number  is completed,  if the  shareholder  or
other  payee does not provide a properly  certified TIN to the Depositary within
60 days, the Depositary will withhold 31% of all payments made prior to the time
a properly certified TIN is provided to the Depositary.
 
    The shareholder  is required  to  give the  Depositary the  social  security
number or employer identification number of the record owner of the Shares or of
the  last transferee appearing on the transfers attached to, or endorsed on, the
Shares. If the Shares are in  more than one name or are  not in the name of  the
actual  owner, consult  the enclosed  "Guidelines for  Certification of Taxpayer
Identification Number on Substitute Form  W-9" for additional guidance on  which
number to report.
 
    10.   REQUESTS FOR  ASSISTANCE OR ADDITIONAL COPIES.   Questions or requests
for assistance  may be  directed to  the Information  Agent at  its address  and
telephone  numbers set forth below. Additional  copies of the Offer to Purchase,
this Letter of  Transmittal and the  Notice of Guaranteed  Delivery may also  be
obtained  from  the Information  Agent or  the Dealer  Manager or  from brokers,
dealers, commercial banks or trust companies.
 
    11.  LOST, DESTROYED OR STOLEN CERTIFICATES.  If any certificate  evidencing
Shares  has  been lost,  destroyed or  stolen,  the shareholder  should promptly
notify Wachovia  Bank of  North Carolina,  N.A., Winston  Salem, North  Carolina
27102-3001, Attention: Darrell V. Milton at (919) 770-4994. The shareholder will
then  be instructed as to the  steps that must be taken  in order to replace the
certificate.  This  Letter  of  Transmittal  and  related  documents  cannot  be
processed until the procedures for replacing lost or destroyed certificates have
been followed.
<PAGE>
    IMPORTANT:  THIS LETTER  OF TRANSMITTAL (OR  A FACSIMILE COPY  HEREOF) OR AN
AGENT'S  MESSAGE  TOGETHER  WITH  CERTIFICATES  OR  CONFIRMATION  OF  BOOK-ENTRY
TRANSFER OR A PROPERLY COMPLETED AND DULY EXECUTED NOTICE OF GUARANTEED DELIVERY
AND  ALL OTHER REQUIRED DOCUMENTS MUST BE RECEIVED BY THE DEPOSITARY ON OR PRIOR
TO THE EXPIRATION DATE.
 
    FACSIMILE COPIES OF THE LETTER  OF TRANSMITTAL, PROPERLY COMPLETED AND  DULY
EXECUTED,  WILL BE ACCEPTED. THE LETTER  OF TRANSMITTAL, CERTIFICATES FOR SHARES
AND ANY OTHER REQUIRED DOCUMENTS SHOULD BE SENT OR DELIVERED BY EACH SHAREHOLDER
OF THE COMPANY OR  HIS BROKER, DEALER, COMMERCIAL  BANK, TRUST COMPANY OR  OTHER
NOMINEE TO THE DEPOSITARY AT ONE OF ITS ADDRESSES SET FORTH BELOW:
 
                        THE DEPOSITARY FOR THE OFFER IS:
 
                        HARRIS TRUST COMPANY OF NEW YORK
 
<TABLE>
<S>                     <C>                     <C>
                        ------------------
       BY MAIL:         BY OVERNIGHT COURIER:        BY HAND:
 
 Wall Street Station     77 Water Street, 4th     Receive Window
    P.O. Box 1010               Floor            77 Water Street,
  New York, New York      New York, New York        5th Floor
      10268-1010                10005           New York, New York
                                                      10005
                             BY FACSIMILE
                            TRANSMISSION:
                            (FOR ELIGIBLE
                          INSTITUTIONS ONLY)
                            (212) 701-7636
                            (212) 701-7637
 
                         CONFIRM FACSIMILE BY
                              TELEPHONE:
 
                            (212) 701-7624
</TABLE>
 
                           --------------------------
 
    Questions  and requests  for assistance may  be directed  to the Information
Agent or the Dealer Manager at their respective addresses and telephone  numbers
listed  below.  Additional  copies of  the  Offer  to Purchase,  this  Letter of
Transmittal  and  other  tender  offer  materials  may  be  obtained  from   the
Information  Agent  or  the Dealer  Manager  as  set forth  below,  and  will be
furnished promptly at the Purchaser's expense. You may also contact your broker,
dealer,  commercial  bank,  trust  company  or  other  nominee  for   assistance
concerning the Offer.
                    THE INFORMATION AGENT FOR THE OFFER IS:
 
                             D.F. KING & CO., INC.
                                77 Water Street
                            New York, New York 10005
                            (212) 269-5550 (collect)
                                       or
                         Call Toll Free: 1-800-848-3402
 
                      THE DEALER MANAGER FOR THE OFFER IS:
 
                                LEHMAN BROTHERS
                            3 WORLD FINANCIAL CENTER
                            NEW YORK, NEW YORK 10285
                         (212) 526-2864 (CALL COLLECT)

<PAGE>
                         NOTICE OF GUARANTEED DELIVERY
 
                                      FOR
 
                        TENDER OF SHARES OF COMMON STOCK
 
                                       OF
 
                              BRENCO, INCORPORATED
 
                   (NOT TO BE USED FOR SIGNATURE GUARANTEES)
 
    This  Notice of Guaranteed  Delivery or one  substantially equivalent hereto
must be used to accept the Offer (as defined below) if certificates representing
shares of Common  Stock, par value  $1.00 per share  (the "Shares"), of  Brenco,
Incorporated,  a  Virginia  corporation  (the  "Company"),  are  not immediately
available or time will not permit  all required documents to reach Harris  Trust
Company  of New York (the  "Depositary") on or prior  to the Expiration Date (as
defined in the Offer to Purchase), or the procedures for delivery by  book-entry
transfer  cannot  be completed  on  a timely  basis.  This Notice  of Guaranteed
Delivery may  be delivered  by hand  or facsimile  transmission or  mail to  the
Depositary. See Section 4 of the Offer to Purchase.
 
                        THE DEPOSITARY FOR THE OFFER IS:
 
                        HARRIS TRUST COMPANY OF NEW YORK
 
<TABLE>
<S>                       <C>                       <C>
                           ------------------
 
        BY MAIL:           BY OVERNIGHT COURIER:          BY HAND:
 
  Wall Street Station       77 Water Street, 4th       Receive Window
     P.O. Box 1010                 Floor            77 Water Street, 5th
   New York, New York     New York, New York 10005         Floor
       10268-1010                                    New York, New York
                                                           10005
                                BY FACSIMILE
                               TRANSMISSION:
                               (FOR ELIGIBLE
                             INSTITUTIONS ONLY)
                               (212) 701-7636
                               (212) 701-7637
 
                            CONFIRM FACSIMILE BY
                                 TELEPHONE:
 
                               (212) 701-7624
</TABLE>
 
                            ------------------------
 
    DELIVERY  OF THIS NOTICE OF GUARANTEED DELIVERY  TO AN ADDRESS OTHER THAN AS
SET FORTH ABOVE OR TRANSMISSION OF INSTRUCTIONS VIA A FACSIMILE TRANSMISSION  TO
A NUMBER OTHER THAN AS SET FORTH ABOVE WILL NOT CONSTITUTE A VALID DELIVERY.
 
    This  Notice  of  Guaranteed  Delivery  is  not  to  be  used  to  guarantee
signatures. If  a  signature  on a  Letter  of  Transmittal is  required  to  be
guaranteed  by an  "Eligible Institution"  under the  instructions thereto, such
signature guarantee  must  appear  in  the  applicable  space  provided  in  the
signature box on the Letter of Transmittal.
<PAGE>
Ladies and Gentlemen:
 
    The  undersigned hereby  tenders to BAS,  Inc., a  Virginia corporation (the
"Purchaser") and a  wholly owned  subsidiary of Varlen  Corporation, a  Delaware
corporation  ("Varlen"), upon the terms and  subject to the conditions set forth
in the Offer to Purchase, dated June 20, 1996 (the "Offer to Purchase"), and  in
the  related  Letter of  Transmittal  (which together  constitute  the "Offer"),
receipt of each of which is hereby acknowledged, the number of Shares  indicated
below  pursuant to the guaranteed delivery procedures  set forth in Section 4 of
the Offer to Purchase.
 
<TABLE>
<S>                                            <C>
Number of Shares  ...........................  Name(s) of Record Holder(s) .................
 
Certificate No(s). (if available):             Address(es):  ...............................
 
 ............................................  .............................................
 
 ............................................  .............................................
 
                                               Area Code and Telephone Number(s):
 
                                               .............................................
</TABLE>
 
    If Share(s) will be tendered by book-entry transfer, check one box.
 
    / / The Depository Trust Company
    / / Philadelphia Depository Trust Company
 
<TABLE>
<S>                                            <C>
Account Number:  ............................  Signature(s):  ..............................
 
Date:  ......................................
</TABLE>
 
                     THE GUARANTEE BELOW MUST BE COMPLETED
                                   GUARANTEE
                    (NOT TO BE USED FOR SIGNATURE GUARANTEE)
 
    The undersigned, a bank, broker,  dealer, credit union, savings  association
or  other entity which is  a member in good  standing of the Securities Transfer
Association's  Medallion  Signature   Guaranty  Program   (each,  an   "Eligible
Institution"),  hereby (a) represents that the  tender of Shares effected hereby
complies with Rule 14e-4 under the Securities Exchange Act of 1934, as  amended,
and  (b) guarantees to  deliver to the  Depositary, at one  of its addresses set
forth above, either the certificates representing all tendered Shares, in proper
form for  transfer,  a Book-Entry  Confirmation  (as  defined in  the  Offer  to
Purchase),  together  with  a properly  completed  and duly  executed  Letter of
Transmittal (or facsimile thereof), with any required signature guarantees,  or,
in  the case of book-entry delivery of Shares, an Agent's Message (as defined in
the Offer  to Purchase),  and any  other  documents required  by the  Letter  of
Transmittal  within  three  National  Association  of  Securities  Dealers, Inc.
Automated Quotation System  trading days  after the  date of  execution of  this
Notice of Guaranteed Delivery.
 
    The  Eligible  Institution that  completes  this form  must  communicate the
guarantee to the Depositary and must  deliver the Letter of Transmittal  (unless
an  Agent's Message is  utilized) and certificates for  Shares to the Depositary
within the  time  period shown  herein.  Failure to  do  so could  result  in  a
financial loss to such Eligible Institution.
 
<TABLE>
<S>                                            <C>
Name of Firm:  ..............................  .............................................
                                                          (AUTHORIZED SIGNATURE)
 
Address:  ...................................  Name:  ......................................
                                                          (PLEASE TYPE OR PRINT)
 
                                               Title:  .....................................
Area Code
and Telephone Number:  ......................  Date:  ......................................
</TABLE>
 
NOTE:    DO  NOT SEND  CERTIFICATES FOR  SHARES WITH  THIS NOTICE  OF GUARANTEED
         DELIVERY. CERTIFICATES FOR SHARES  SHOULD BE SENT  WITH YOUR LETTER  OF
         TRANSMITTAL.

<PAGE>
                           OFFER TO PURCHASE FOR CASH
                     ALL OUTSTANDING SHARES OF COMMON STOCK
 
                                       OF
 
                              BRENCO, INCORPORATED
 
                                       AT
 
                             $16.125 NET PER SHARE
 
                                       BY
 
                                   BAS, INC.
 
                          A WHOLLY OWNED SUBSIDIARY OF
 
                               VARLEN CORPORATION
 
  THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY
         TIME, ON THURSDAY, JULY 18, 1996 UNLESS THE OFFER IS EXTENDED.
                                                                   June 20, 1996
To Brokers, Dealers, Commercial Banks, Trust Companies and Other Nominees:
 
    We   have  been  appointed  by  BAS,   Inc.,  a  Virginia  corporation  (the
"Purchaser") and a  wholly owned  subsidiary of Varlen  Corporation, a  Delaware
corporation,  to act as financial advisor  and Dealer Manager in connection with
the Purchaser's offer to  purchase all outstanding shares  of Common Stock,  par
value  $1.00  per  share  (the "Shares"),  of  Brenco  Incorporated,  a Virginia
corporation (the "Company"), at  $16.125 per Share, net  to the seller in  cash,
without  any interest, upon the terms and subject to the conditions set forth in
the Offer to  Purchase dated June  20, 1996  (the "Offer to  Purchase") and  the
related Letter of Transmittal (which together constitute the "Offer").
 
    For  your information and for  forwarding to your clients  for whom you hold
Shares registered in your name or in the name of your nominee, we are  enclosing
the following documents:
 
       1.  Offer to Purchase dated June 20, 1996;
 
       2.  Letter  of Transmittal,  for your  use to  tender Shares  and for the
           information of your clients;
 
       3.  Notice of Guaranteed  Delivery for Shares  to be used  to accept  the
           Offer  if certificates  for Shares  and all  other documents  are not
    immediately available or cannot be delivered to Harris Trust Company of  New
    York  (the "Depositary") by the Expiration Date  (as defined in the Offer to
    Purchase) or if the procedures  for book-entry transfer cannot be  completed
    by the Expiration Date;
 
       4.  A form of letter which may be sent to your clients for whose accounts
           you  hold  Shares registered  in your  name  or in  the name  of your
    nominee, with space provided for  obtaining such clients' instructions  with
    regard to the Offer;
 
       5.  Guidelines  of  the  Internal Revenue  Service  for  certification of
           Taxpayer Identification Number on Substitute Form W-9;
 
       6.  Return envelope addressed to the Depositary; and
 
       7.  The letter to shareholders  of the Company from  the Chairman of  the
           Board    of    the    Company    accompanied    by    the   Company's
    Solicitation/Recommendation Statement on Schedule 14D-9.
 
    YOUR PROMPT ACTION  IS REQUESTED.  WE URGE YOU  TO CONTACT  YOUR CLIENTS  AS
PROMPTLY  AS POSSIBLE.  PLEASE NOTE  THAT THE  OFFER AND  WITHDRAWAL RIGHTS WILL
EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY TIME, ON THURSDAY, JULY 18, 1996, UNLESS
THE OFFER IS EXTENDED.
<PAGE>
    The Offer is conditioned upon, among  other things, (i) there being  validly
tendered  and not  withdrawn prior  to the  Expiration Date  a number  of Shares
which, together with the  Shares beneficially owned  by Varlen Corporation,  the
Purchaser  and/or other subsidiaries of  Varlen Corporation, represents at least
two-thirds of the  total number of  Shares then outstanding  on a fully  diluted
basis,   and   (ii)   the  expiration   of   all  waiting   periods   under  the
Hart-Scott-Rodino Antitrust Improvements Act of 1976, as amended, and the  rules
and  regulations  thereunder.  The Offer  is  also  subject to  other  terms and
conditions contained in the Offer to Purchase. See the Introduction and Sections
1, 13 and 16.
 
    In order to accept the Offer, a duly executed and properly completed  Letter
of  Transmittal and any required signature guarantees, or an Agent's Message (as
defined in the Offer  to Purchase) in connection  with a book-entry transfer  of
Shares,  and any other required documents should  be sent to the Depositary, and
either certificates  representing tendered  Shares should  be delivered  to  the
Depositary,  or  Shares  should  be tendered  by  book-entry  transfer  into the
Depositary's account maintained at one of the Book-Entry Transfer Facilities (as
defined in the Offer to Purchase),  all in accordance with the instructions  set
forth in the Letter of Transmittal and the Offer to Purchase.
 
    If  holders of Shares wish  to tender their Shares,  but it is impracticable
for them to  forward their certificates  for tendered Shares  or other  required
documents  on or prior to  the Expiration Date or  to comply with the book-entry
transfer procedures on a timely basis, a tender may be effected by following the
guaranteed delivery procedures specified in Section 4 of the Offer to Purchase.
 
    The Purchaser will not pay any fees  or commissions to any broker or  dealer
or  other person (other  than the Dealer  Manager, as described  in the Offer to
Purchase) for soliciting tenders of Shares pursuant to the Offer. The  Purchaser
will,  however, upon request, reimburse you  for reasonable expenses incurred by
you in forwarding any of the  enclosed materials to your clients. The  Purchaser
will pay or cause to be paid any stock transfer taxes payable on the transfer of
the Shares to it, except as otherwise provided in Instruction 6 of the Letter of
Transmittal.
 
    Any inquiries you may have with respect to the Offer should be addressed to,
and  additional  copies of  the  enclosed materials  may  be obtained  from, the
Information Agent or the undersigned at their respective addresses and telephone
numbers set forth on the back cover of the Offer to Purchase.
 
    The Offer is  not being made  to (nor will  tenders be accepted  from or  on
behalf of) holders of Shares residing in any jurisdiction in which the making of
the  Offer  or  the acceptance  thereof  would  not be  in  compliance  with the
securities, blue sky or other laws of such jurisdiction.
 
                                          Very truly yours,
 
                                           LEHMAN BROTHERS INC.
                                          NEW YORK, NEW YORK
 
NOTHING CONTAINED HEREIN OR  IN THE ENCLOSED DOCUMENTS  SHALL CONSTITUTE YOU  OR
ANY  PERSON AS AN AGENT  OF VARLEN CORPORATION, THE  PURCHASER, THE COMPANY, ANY
AFFILIATE OF THE  FOREGOING, THE DEALER  MANAGER, THE INFORMATION  AGENT OR  THE
DEPOSITARY, OR AUTHORIZE YOU OR ANY OTHER PERSON TO USE ANY DOCUMENT OR MAKE ANY
STATEMENT  ON BEHALF OF ANY OF THEM IN  CONNECTION WITH THE OFFER OTHER THAN THE
DOCUMENTS ENCLOSED HEREWITH AND THE STATEMENTS CONTAINED THEREIN.

<PAGE>
                           OFFER TO PURCHASE FOR CASH
                     ALL OUTSTANDING SHARES OF COMMON STOCK
 
                                       OF
 
                              BRENCO, INCORPORATED
 
                                       AT
 
                             $16.125 NET PER SHARE
 
                                       BY
 
                                   BAS, INC.
 
                          A WHOLLY OWNED SUBSIDIARY OF
 
                               VARLEN CORPORATION
 
  THE OFFER AND WITHDRAWAL RIGHTS WILL EXPIRE AT 12:00 MIDNIGHT, NEW YORK CITY
         TIME, ON THURSDAY, JULY 18, 1996 UNLESS THE OFFER IS EXTENDED.
                                                                   June 20, 1996
 
To Our Clients:
 
    Enclosed  for your  consideration are the  Offer to Purchase  dated June 20,
1996 (the "Offer  to Purchase")  and the  related Letter  of Transmittal  (which
together  constitute the "Offer")  and other materials relating  to the Offer by
BAS,  Inc.,  a  Virginia  corporation  (the  "Purchaser")  and  a  wholly  owned
subsidiary  of  Varlen  Corporation,  a Delaware  corporation,  to  purchase all
outstanding shares of Common Stock, par value $1.00 per Share (the "Shares"), of
Brenco, Incorporated, a  Virginia corporation  (the "Company"),  at $16.125  per
Share,  net to  the seller  in cash,  without any  interest, upon  the terms and
subject to  the conditions  set forth  in  the Offer.  Holders of  Shares  whose
certificates  for  such  Shares are  not  immediately available,  or  who cannot
deliver their  certificates and  all other  required documents  to Harris  Trust
Company  of New York (the  "Depositary") on or prior  to the Expiration Date (as
defined in the  Offer to Purchase),  or who cannot  complete the procedures  for
book-entry transfer on a timely basis, must tender their Shares according to the
guaranteed delivery procedures set forth in Section 4 of the Offer to Purchase.
 
    WE  ARE (OR OUR  NOMINEE IS) THE HOLDER  OF RECORD OF SHARES  HELD BY US FOR
YOUR ACCOUNT. A TENDER OF SUCH  SHARES CAN BE MADE ONLY  BY US AS THE HOLDER  OF
RECORD AND PURSUANT TO YOUR INSTRUCTIONS. THE LETTER OF TRANSMITTAL IS FURNISHED
TO YOU FOR YOUR INFORMATION ONLY AND CANNOT BE USED BY YOU TO TENDER SHARES HELD
BY US FOR YOUR ACCOUNT.
 
    We  request instructions as  to whether you  wish to have  us tender on your
behalf any or all such Shares held by us for your account, pursuant to the terms
and subject to the conditions set forth in the Offer.
 
    Your attention is directed to the following:
 
    1.  The tender price is $16.125 per  Share, net to you in cash, without  any
interest, thereon, upon the terms and subject to the conditions set forth in the
Offer.
 
    2.  The Offer is being made for all outstanding Shares.
 
    3.   The Offer and withdrawal rights will expire at 12:00 Midnight, New York
City time, on Thursday, July 18, 1996, unless the Offer is extended.
 
    4.  Tendering shareholders  will not be obligated  to pay brokerage fees  or
commissions  or, except as otherwise provided in  Instruction 6 of the Letter of
Transmittal, stock transfer  taxes on the  purchase of Shares  by the  Purchaser
pursuant to the Offer.
 
    5.   The  Offer is  conditioned upon,  among other  things, (i)  there being
validly tendered and  not withdrawn prior  to the Expiration  Date, a number  of
Shares  which, together with the Shares beneficially owned by Varlen Corporation
or the Purchaser and/or other subsidiaries of Varlen Corporation, represents  at
least  two-thirds of  the total  number of  Shares then  outstanding on  a fully
diluted basis and (ii) the
<PAGE>
expiration  of  all  waiting  periods  under  the  Hart-Scott-Rodino   Antitrust
Improvements  Act of 1976, as amended, and the rules and regulations thereunder.
The Offer is also subject to other  terms and conditions contained in the  Offer
to Purchase. See the Introduction and Sections 1, 13 and 16.
 
    6.   The  Board of  Directors of  the Company  has unanimously  approved the
Offer, the Merger  (as defined  in the Offer  to Purchase)  and the  Acquisition
Agreement  (as defined in the Offer to  Purchase), has determined that the terms
of the Offer and  the Merger contemplated  thereby are fair to  and in the  best
interests   of  the  shareholders  of  the   Company  and  recommends  that  the
shareholders accept the Offer and tender their Shares pursuant to the Offer.
 
    7.  Payment for Shares purchased pursuant to the Offer will in all cases  be
made  only  after  timely receipt  by  the  Depositary of  (a)  certificates for
tendered Shares or timely confirmation of the book-entry transfer of such Shares
into the account maintained by the Depositary at The Depository Trust Company or
the  Philadelphia  Depository  Trust  Company  (collectively,  the   "Book-Entry
Transfer  Facilities"), pursuant to the procedures set forth in Section 4 of the
Offer to  Purchase, (b)  the Letter  of Transmittal  (or a  facsimile  thereof),
properly  completed and duly executed, with any required signature guarantees or
an Agent's Message (as defined in the  Offer to Purchase), in connection with  a
book-entry  delivery,  and (c)  any other  documents required  by the  Letter of
Transmittal. Accordingly, payment may not be made to all tendering  shareholders
at  the  same time  depending  upon when  certificates  for or  confirmations of
book-entry transfer of such Shares into the Depositary's account at a Book-Entry
Transfer Facility are actually received by the Depositary.
 
    The Offer is  not being made  to (nor will  tenders be accepted  from or  on
behalf of) holders of Shares residing in any jurisdiction in which the making of
the  Offer  or  the acceptance  thereof  would  not be  in  compliance  with the
securities, blue sky or other laws of such jurisdiction. However, the  Purchaser
may,  in its discretion, take  such action as it may  deem necessary to make the
Offer in any such jurisdiction and extend the Offer to holders of Shares in such
jurisdiction.
 
    In any jurisdiction where the securities, blue sky or other laws require the
Offer to be  made by a  licensed broker or  dealer, the Offer  is being made  on
behalf  of the  Purchaser by  Lehman Brothers Inc.,  the Dealer  Manager for the
Offer, or one or more registered brokers or dealers that are licensed under  the
laws of such jurisdiction.
 
    If  you wish to have us tender any or all of your Shares held by us for your
account, please so instruct us by completing, executing, detaching and returning
to us  the  instruction  form  set  forth below.  An  envelope  to  return  your
instructions  to us is enclosed. PLEASE FORWARD YOUR INSTRUCTIONS TO US IN AMPLE
TIME TO PERMIT  US TO SUBMIT  A TENDER ON  YOUR BEHALF PRIOR  TO THE  EXPIRATION
DATE.  The enclosed Letter of Transmittal is  furnished to you as an example and
should not be used to tender Shares. IF YOU AUTHORIZE THE TENDER OF YOUR SHARES,
ALL SUCH SHARES WILL BE TENDERED  UNLESS OTHERWISE SPECIFIED ON THE  INSTRUCTION
FORM SET FORTH BELOW.
 
Tear Here                                                              Tear Here
- --------------------------------------------------------------------------------
 
                         Instructions with Respect to:
                           Offer to Purchase for Cash
                     All Outstanding Shares of Common Stock
                                       of
                              BRENCO, INCORPORATED
                                       by
                                   BAS, INC.
                          a Wholly Owned Subsidiary of
                               VARLEN CORPORATION
 
                                      -2 -
<PAGE>
    The undersigned acknowledge(s) receipt of your letter and the enclosed Offer
to Purchase dated June 20, 1996 (the "Offer to Purchase") and the related Letter
of  Transmittal (which together  constitute the "Offer")  in connection with the
offer by BAS,  Inc., a  Virginia corporation and  a wholly  owned subsidiary  of
Varlen  Corporation, a Delaware corporation,  to purchase all outstanding shares
of  Common  Stock,  par  value  $1.00  per  share  (the  "Shares"),  of  Brenco,
Incorporated,  a Virginia corporation, at a purchase price of $16.125 per Share,
net to the Seller in cash, without  any interest, upon the terms and subject  to
the conditions set forth in the Offer to Purchase.
 
    This  will instruct  you to  tender to  the Purchaser  the number  of Shares
indicated below (or if no number is indicated below, all Shares) which are  held
by  you for the  account of the undersigned,  upon the terms  and subject to the
conditions set forth in the Offer.
 
Number of Shares to Be Tendered: ____________ Shares*
 
                                   SIGN HERE
 
Signature(s): __________________________________________________________________
 
Signature(s): __________________________________________________________________
 
(Print Name(s)): _______________________________________________________________
 
(Print Address(es)): ___________________________________________________________
 
(Area Code and Telephone Number(s)): ___________________________________________
 
(Taxpayer Identification or Social Security Number(s)): ________________________
 
Dated: ______________, 1996
 
- ------------------------
* Unless otherwise indicated, it will be assumed that you instruct us to  tender
  all Shares held by us for your account.
 
                                      -3 -

<PAGE>
                                                                       EXHIBIT K
 
Varlen Corporation, 55 Shuman Blvd., P.O. Box 3089, Naperville, Illinois
60566-7089
(708)420-0400    FAX (708)420-7123
 
                                    CONTACT:
                                    Richard L. Wellek, President & CEO or
                                    Richard A. Nunemaker, Vice President & CFO
                                    Varlen Corporation (708) 420-4000
                                    Jacob M. Feichtner, Executive Vice President
                                    & CFO
                                    (804) 378-2902
                                    Needham B. Whitfield, Chairman & CEO
                                    Brenco, Incorporated (804) 378-2900
 
                 VARLEN ENTERS INTO DEFINITIVE AGREEMENT TO BUY
                 BRENCO THROUGH $165 MILLION CASH TENDER OFFER
 
  MERGER WOULD CREATE PREEMINENT RAILROAD EQUIPMENT MANUFACTURER WITHIN VARLEN
 
    NAPERVILLE,  Ill.,  June 17,  1996 --  Varlen Corporation  (NASDAQ:VRLN) and
Brenco, Incorporated (NASDAQ:BREN) of the Richmond, Va. area, today announced  a
definitive  agreement for  Varlen to  buy Brenco in  a $165  million cash tender
offer, creating  within Varlen  a preeminent  global manufacturer  of  precision
engineered  railroad products that  is well-positioned to  capitalize on growing
international interest in American freight railroad technologies.
 
    The merger would  transform Varlen  into a company  with approximately  $500
million  in 1997 annual sales and  3,200 employees with manufacturing facilities
in 13 states, as  well as Germany and  France, and would substantially  increase
railroad  products revenue. The acquisition is anticipated  to add up to 7 cents
per share to fiscal 1996 earnings based on a late July closing.
 
    "Varlen and  Brenco are  a great  strategic fit,"  said Richard  L.  Wellek,
Varlen's  president and chief  executive officer. "Varlen  has enjoyed excellent
long-term growth on  the strength  of our current  businesses. This  combination
will  help us grow faster in our railroad and automotive markets. This continues
our corporate focus on  manufacturing highly-engineered transportation  products
and  analytical instruments, maintaining niche  market leadership, and expanding
our international presence."
 
    Terms of the agreement approved by  both boards of directors include  prompt
commencement,  through a wholly-owned Varlen subsidiary,  of a tender offer at a
price of $16 1/8 for each outstanding  share of Brenco common stock. The  tender
offer  requires that Varlen  will be able  to obtain at  least two-thirds of the
shares at the expiration of the offer, which is scheduled to remain open for  20
business  days. An offer to purchase containing  all of the terms and conditions
will be  mailed to  Brenco shareholders  in  the next  few days.  The  agreement
contemplates  that  shares not  tendered  would be  acquired  at the  same price
through a  merger. Brenco  has approximately  10.2 million  shares  outstanding.
Persons  related to Brenco's founding family  -- including Needham B. Whitfield,
Brenco's chairman, and his sister Anne Whitfield Kenny -- control  approximately
20  percent of the stock and have signed a separate shareholder tender agreement
with Varlen.
 
    "At a premium  of 32% over  the closing  price for Brenco  shares Friday,  I
believe  Varlen's  offer will  be well  received  by Brenco  shareholders," said
Brenco's chairman and chief  executive officer, Needham  B. Whitfield. "We  feel
very  comfortable  entrusting  Brenco's  dedicated  employees  and  position  of
leadership in the railroad bearing market  to a company of Varlen's caliber  and
reputation.  The cultures of the two  companies are extremely compatible. Varlen
understands our markets -- both in the automotive and in the railroad industries
- -- and  supports  our market  strategies  of continual  product  innovation  and
outstanding  customer service. Most important for our future, Varlen is prepared
to invest in our plans for growth."
 
    After the merger, Brenco would continue to be based in the Richmond area and
would become a wholly-owned subsidiary of Varlen. J. Craig Rice would remain  as
Brenco president.
<PAGE>
    Varlen  has been  a manufacturer  of railroad  products since  its founding.
Wellek said potential synergies between  the two companies should create  future
growth  opportunities in railroad  equipment. "We will have  a stronger and more
diverse family of products for the railroad industry, as well as the ability  to
leverage greater sales overseas," he said.
 
    Brenco  is  a  leading  manufacturer and  re-conditioner  of  tapered roller
bearings for freight  cars, for both  the domestic and  overseas markets.  Other
Varlen subsidiaries make railcar shock control devices, outlet gates, locomotive
products and track fastening devices.
 
    Varlen,  headquartered in Naperville, Illinois, is a leading manufacturer of
precision engineered transportation products and analytical instruments for  the
railroad,  heavy-duty truck  and trailer,  automotive and  petroleum industries.
Varlen's customers include  Freightliner, PACCAR, General  Motors, Chrysler  and
TTX. The company had 1995 annual sales of $387 million.
 
                                      ###
 
    MORE  INFORMATION ON VARLEN AND BRENCO CAN BE FOUND ON THE CHLOPAK, LEONARD,
SCHECHTER SITE ON THE WORLD WIDE WEB AT HTTP://CLSDC.COM/NEWS/VARLEN.

<PAGE>

================================================================================

This announcement is neither an offer to purchase nor a solicitation of an offer
to sell Shares (as defined  below).  The Offer (as defined below) is made solely
by the  Offer  to  Purchase  dated  June  20,  1996 and the  related  Letter  of
Transmittal,  and is being  made to all  holders of Shares.  The  Purchaser  (as
defined  below)  is not  aware of any  state  where  the  making of the Offer is
prohibited  by  administrative  or judicial  action  pursuant to any valid state
statute.  If the Purchaser becomes aware of any valid state statute  prohibiting
the  making  of the Offer or the  acceptance  of Shares  pursuant  thereto,  the
Purchaser  will make a good faith effort to comply with such state  statute.  If
after  such good faith  effort,  the  Purchaser  cannot  comply  with such state
statute,  the Offer will not be made to (nor will tenders be accepted from or on
behalf of) the holders of Shares in such state.  In any  jurisdiction  where the
securities,  blue sky or other laws  require  the Offer to be made by a licensed
broker  or  dealer,  the  Offer  shall be  deemed  to be made on  behalf  of the
Purchaser by Lehman Brothers Inc. or one or more  registered  brokers or dealers
licensed under the laws of such jurisdiction.

                      Notice of Offer to Purchase for Cash

                     All Outstanding Shares of Common Stock

                                       of

                              Brenco, Incorporated

                                       at

                             $16.125 Net Per Share

                                       by

                                   BAS, Inc.

                          a wholly owned subsidiary of

                               Varlen Corporation

     BAS,  Inc., a Virginia  corporation  (the  "Purchaser")  and a wholly owned
subsidiary of Varlen Corporation, a Delaware corporation ("Varlen"), is offering
to purchase  all  outstanding  shares of the Common  Stock,  par value $1.00 per
share (the  "Shares"),  of Brenco,  Incorporated,  a Virginia  corporation  (the
"Company"),  at  $16.125  per  Share,  net to the  seller in cash,  without  any
interest, upon the terms and subject to the conditions set forth in the Offer to
Purchase,  dated June 20,  1996 (the  "Offer to  Purchase")  and in the  related
Letter of Transmittal  (which  together  constitute the "Offer").  Following the
Offer, the Purchaser intends to effect the Merger described below.

  ---------------------------------------------------------------------------
  THE OFFER AND  WITHDRAWAL  RIGHTS WILL EXPIRE AT 12:00  MIDNIGHT,  NEW YORK
  CITY TIME,  ON  THURSDAY,  JULY 18,  1996,  UNLESS  THE OFFER IS  EXTENDED.
  ---------------------------------------------------------------------------

     THE OFFER IS  CONDITIONED  UPON,  AMONG OTHER  THINGS,  THERE BEING VALIDLY
TENDERED AND NOT WITHDRAWN PRIOR TO THE EXPIRATION DATE (AS DEFINED IN THE OFFER
TO PURCHASE) A NUMBER OF SHARES OF THE COMPANY  WHICH,  TOGETHER WITH THE SHARES
BENEFICIALLY  OWNED BY VARLEN,  THE  PURCHASER,  AND/OR  OTHER  SUBSIDIARIES  OF
VARLEN, REPRESENTS AT LEAST TWO-THIRDS OF THE TOTAL NUMBER OF SHARES OUTSTANDING
ON A FULLY DILUTED BASIS (THE "MINIMUM CONDITION"). THE PURCHASER ESTIMATES THAT
APPROXIMATELY 6,639,627 SHARES WILL NEED TO BE VALIDLY TENDERED (AND NOT VALIDLY
WITHDRAWN) TO SATISFY THE MINIMUM CONDITION.

     The Offer is being made pursuant to an  Acquisition  Agreement  dated as of
June 15, 1996 (the "Acquisition Agreement"),  by and among Varlen, the Purchaser
and the  Company.  Pursuant  to the  Acquisition  Agreement,  and subject to the
satisfaction  or waiver of the conditions  set forth therein,  the Purchaser has
agreed  to make the Offer and  purchase  all  Shares  validly  tendered  and not
withdrawn  following  the  later of (i) the  expiration  or  termination  of all
waiting periods under the Hart-Scott-Rodino  Antitrust Improvements Act of 1976,
as amended  (the "HSR  Act"),  applicable  to the Offer and (ii) the  Expiration
Date.  After the completion of the Offer,  the Purchaser will be merged with and
into the Company  (the  "Merger")  and each Share then  outstanding  (other than
Shares  held by Varlen,  the  Purchaser,  the  Company or any direct or indirect
subsidiary of Varlen,  the Purchaser or the Company,  and Shares with respect to
which  dissenter's  rights under the Virginia Stock  Corporation Act, as amended
(the   "Virginia   Act")  are  properly   exercised)   will  be  converted  upon
effectiveness  of the Merger  (the  "Effective  Time") into the right to receive
$16.125 in cash, without any interest. Following the consummation of the Merger,
the Company  will  continue as the  surviving  corporation  and will be a wholly
owned subsidiary of Varlen.

     THE BOARD OF DIRECTORS OF THE COMPANY HAS  UNANIMOUSLY  APPROVED THE OFFER,
THE MERGER AND THE ACQUISITION  AGREEMENT,  HAS DETERMINED THAT THE TERMS OF THE
OFFER,  THE MERGER  AND THE  ACQUISITION  AGREEMENT  ARE FAIR TO AND IN THE BEST
INTERESTS OF THE  SHAREHOLDERS OF THE COMPANY AND RECOMMENDS  THAT  SHAREHOLDERS
ACCEPT THE OFFER AND TENDER THEIR SHARES PURSUANT TO THE OFFER.

     Simultaneously with entering into the Acquisition Agreement, Varlen entered
into a Shareholder  Tender Agreement (the "Shareholder  Tender  Agreement") with
certain  shareholders of the Company (the "Tendering  Shareholders"),  including
the Chairman and Chief Executive Officer of the Company and certain members (and
trusts for the benefit of)  members of his family.  Pursuant to the  Shareholder
Tender  Agreement,  each  Tendering  Shareholder  has agreed to tender  (and not
withdraw) pursuant to the Offer and before the Expiration Date all of the Shares
owned of  record or  beneficially  by such  Tendering  Shareholder  (subject  to
certain  exceptions) on the date of the Shareholder  Tender Agreement,  together
with  any  Shares  acquired  by any  such  Tendering  Shareholder  prior  to the
termination of the  Shareholder  Tender  Agreement.  As of the date hereof,  the
Tendering Shareholders beneficially own 2,108,343 Shares, or approximately 20.7%
of all outstanding Shares.

     The  Offer is  subject  to  certain  conditions  set  forth in the Offer to
Purchase.  If any such  condition is not satisfied  prior to the time of payment
for any  Shares,  the  Purchaser  may (i)  terminate  the Offer and  return  all
tendered shares to tendering shareholders, (ii) extend the Offer and, subject to
withdrawal  rights  as set  forth  below,  retain  all  such  Shares  until  the
expiration of the Offer as so extended,  (iii) waive such condition and, subject
to any  requirement to extend the period of time during which the Offer is open,
purchase all Shares validly  tendered by the Expiration  Date and not withdrawn,
or (iv)  delay  acceptance  for  payment of or payment  for  Shares,  subject to
applicable law, until satisfaction or waiver of the conditions of the Offer.

     For purposes of the Offer,  the Purchaser  shall be deemed to have accepted
for  payment  (and  thereby  purchased)  tendered  Shares  as,  if and  when the
Purchaser  gives oral or written notice to the Depositary  (Harris Trust Company
of New York) of the Purchaser's  acceptance of such Shares for payment  pursuant
to the Offer. Payment for Shares purchased pursuant to the Offer will be made by
deposit of the purchase price with the  Depositary,  which will act as agent for
tendering  shareholders for the purpose of receiving  payment from the Purchaser
and  transmitting  payments to tendering  shareholders.  The Purchaser will not,
under any circumstances,  pay interest on the purchase price,  regardless of any
delay in making  such  payment.  In all  cases,  payment  for  Shares  purchased
pursuant to the Offer will be made only after timely  receipt by the  Depositary
of (i) the  certificates  evidencing  the  Shares  or timely  confirmation  of a
book-entry transfer of such Shares into the Depositary's account at a Book-Entry
Transfer  Facility  (as  defined  in the  Offer  to  Purchase)  pursuant  to the
procedures  set forth in the Offer to Purchase,  (ii) the Letter of  Transmittal
(or a  facsimile  thereof),  properly  completed  and  duly  executed,  with any
required signature guarantees, or an Agent's Message (as defined in the Offer to
Purchase), and (iii) any other documents required by the Letter of Transmittal.

     The Purchaser expressly reserves the right, in its sole discretion,  at any
time and from time to time,  to extend the period of time during which the Offer
is open (but subject to the terms and conditions of the  Acquisition  Agreement)
by giving oral or written notice of such extension to the  Depositary.  Any such
extension  will be  followed,  as soon as  practicable,  by public  announcement
thereof,  no later than 9:00 a.m.,  New York City time, on the next business day
after the previously scheduled Expiration Date.

     Tenders of Shares made  pursuant to the Offer will be  irrevocable,  except
that Shares  tendered may be withdrawn at any time prior to the Expiration  Date
and, unless previously accepted for payment,  may also be withdrawn after August
18,  1996.  If the  Purchaser  is delayed in its  acceptance  or  purchase of or
payment  for Shares or is unable to  purchase  or pay for Shares for any reason,
then,  without  prejudice  to the  Purchaser's  rights,  tendered  Shares may be
retained by the  Depositary  on behalf of the Purchaser and may not be withdrawn
except as described in the Offer to Purchase.

     For a  withdrawal  to be  effective,  a written or  facsimile  transmission
notice of  withdrawal  must be timely  received by the  Depositary at one of its
addresses specified on the back cover of the Offer to Purchase.  Any such notice
of withdrawal  must specify the name of the person who tendered the Shares to be
withdrawn,   the  number  of  Shares  to  be  withdrawn  and,  if   certificates
representing  such Shares have been  delivered  or otherwise  identified  to the
Depositary,  the name(s) in which such  certificate(s) is (are)  registered,  if
different  from the name of the person  tendering such Shares.  If  certificates
have been delivered or otherwise identified to the Depositary, then prior to the
physical  release of such  certificates,  the  tendering  shareholder  must also
submit the serial numbers shown on the particular  certificates  evidencing such
Shares and the  signature on the notice of  withdrawal  must be  guaranteed by a
member  firm of a  registered  national  securities  exchange,  a member  of the
National  Association of Securities  Dealers,  Inc., a commercial  bank or trust
company  having an office,  branch or agency in the  United  States or any other
institution that is a member of the Medallion  Signature  Guaranty Program (each
being  referred  to herein as an  "Eligible  Institution").  If Shares have been
tendered  pursuant to the procedure for book-entry tender set forth in the Offer
to  Purchase,  the  notice  of  withdrawal  must  specify  the name and  account
number(s) of the account(s) at the applicable Book-Entry Transfer Facility to be
credited  with the withdrawn  Shares.  All questions as to the form and validity
(including  time of receipt) of notices of withdrawal  will be determined by the
Purchaser,  in its sole  discretion,  whose  determination  shall  be final  and
binding.

     The information  required to be disclosed by Rule  14d-6(e)(1)(vii)  of the
General  Rules and  Regulations  under the  Securities  Exchange Act of 1934, as
amended,  is contained in the Offer to Purchase  and is  incorporated  herein by
reference.

     The Company has provided the Purchaser with the Company's  shareholder list
and security  position  listings for the purpose of  disseminating  the Offer to
holders of Shares.  The Offer to Purchase and the related  Letter of Transmittal
will be mailed to record  holders of Shares and will be  furnished  to  brokers,
dealers,  banks and similar persons whose names, or the names of whose nominees,
appear on the shareholder list or, if applicable, who are listed as participants
in a clearing agency's security position listing, for subsequent  transmittal to
beneficial owners of Shares.

     THE  OFFER TO  PURCHASE  AND THE  RELATED  LETTER  OF  TRANSMITTAL  CONTAIN
IMPORTANT INFORMATION WHICH SHOULD BE READ CAREFULLY BEFORE ANY DECISION IS MADE
WITH RESPECT TO THE OFFER.

     Questions and requests for assistance or for additional copies of the Offer
to  Purchase  and the  related  Letter of  Transmittal  and other  tender  offer
materials  may be directed  to the  Information  Agent or the Dealer  Manager at
their respective  telephone numbers and locations as set forth below, and copies
will be furnished  promptly at the Purchaser's  expense.  The Purchaser will not
pay any fees or  commissions  to any broker or dealer or any other person (other
than the Dealer Manager) for soliciting tenders of Shares pursuant to the Offer.


                    The Information Agent for the Offer is:

                             D.F. King & Co., Inc.
                                77 Water Street
                            New York, New York 10005
                         (212) 269-5550 (call collect)
                                       or
                         Call Toll Free: 1-800-848-3402


                      The Dealer Manager for the Offer is:

                                Lehman Brothers
                            3 World Financial Center
                            New York, New York 10285
                                 (212) 526-2864
                                 (call collect)

June 20, 1996

================================================================================

<PAGE>


                            Contact:
                            Richard L. Wellek, President & CEO, or
                            Richard A. Nunemaker, Vice President & CFO,
                            Varlen Corporation (708) 420-0400
                            Jacob M. Feichtner, Executive Vice President & CFO,
                            (804) 378-2902
                            Needham B. Whitfield, Chairman & CEO,
                            Brenco, Incorporated (804) 378-2900


               VARLEN COMMENCES $165 MILLION CASH TENDER OFFER 
                             FOR BRENCO SHARES

  MERGER WOULD CREATE PREEMINENT RAILROAD EQUIPMENT MANUFACTURER WITHIN VARLEN

     NAPERVILLE, ILL., June 20, 1996 -- Varlen Corporation (NASDAQ:VRLN) and 
Brenco, Incorporated (NASDAQ:BREN) of the Richmond, Va. area today announced
that a wholly owned  Varlen subsidiary has formally commenced a tender offer
for any and all outstanding shares of Brenco common stock at a price of
$16-1/8 per share, net to the seller in cash. The offer, which is scheduled to
expire on July 18, 1996, is being made pursuant to an agreement with Brenco
announced earlier this week. The offer is to be followed by a merger that will
result in Brenco becoming a wholly owned subsidiary of Varlen.

     The board of directors of Brenco has unanimously approved the offer and the
merger, has determined that the terms of the offer and merger are fair to and 
in the best interests of the shareholders of Brenco and recommends that 
shareholders accept the offer and tender 


                                    (More)

<PAGE>


their shares pursuant thereto. The tender offer requires that Varlen will be 
able to obtain at least two-thirds of the shares at the expiration of the 
offer. An offer to purchase containing all of the terms and conditions of the 
offer is being distributed to Brenco's shareholders. The agreement 
contemplates that shares not tendered would be acquired at the same $16.125 
price through the merger. Brenco has approximately 10.2 million shares 
outstanding. Persons related to Brenco's founding family -- including Needham 
B. Whitfield, Brenco's chairman and chief executive officer, and his sister
Anne Whitfield Kenny -- control approximately 20 percent of the stock and have
signed a separate shareholder tender agreement with Varlen.

     "We are delighted to be taking this important step to make Brenco an 
integral member of our Varlen family of companies," commented Richard L. 
Wellek, Varlen's president and chief executive officer. Wellek said potential 
synergies between the two companies should create future growth opportunities 
in railroad equipment.

     Lehman Brothers, Inc. is acting as financial advisor to Varlen in 
connection with the transactions and as dealer manager for the tender offer.
The information agent is D.F. King & Co., Inc.

     Brenco, headquartered in the Richmond, Va. area, is a leading manufacturer
and reconditioner of tapered roller bearings for freight cars, for both the 
domestic and overseas markets. Other Varlen subsidiaries make railcar shock 
control devices, outlet gates, locomotive products and track fastening 
devices.

     Varlen, headquartered in Naperville, Illinois, is a leading manufacturer of
precision engineered transportation products and analytical instruments for 
the railroad, heavy-duty truck 


                                      (More)

<PAGE>


and trailer, automotive and petroleum industries. Varlen's customers include 
Freightliner, PACCAR, General Motors, Chrysler and TIX. The company had 1995 
annual sales of $387 million.


                                    ###

     MORE INFORMATION ON VARLEN AND BRENCO CAN BE FOUND ON THE CHLOPAK, LEONARD,
SCHECHTER SITE ON THE WORLD WIDE WED AT HTTP://CLSDC.COM/NEWS/VARLEN.



<PAGE>
            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
 
GUIDELINES  FOR  DETERMINING  THE  PROPER  IDENTIFICATION  NUMBER  TO  GIVE  THE
PAYER.--Social Security numbers have nine digits separated by two hyphens: i.e.,
000-00-0000. Employer identification numbers have nine digits separated by  only
one  hyphen: i.e., 00-0000000. The table below will help determine the number to
give the payer.
 
- ----------------------------------------------
 
<TABLE>
<CAPTION>

<S>                                     <C>
                                        GIVE THE
FOR THIS TYPE OF ACCOUNT:               SOCIAL SECURITY
                                        NUMBER OF--
</TABLE>
 
- ----------------------------------------------------------
 
<TABLE>
<C>        <S>                          <C>
       1.  An individual's account      The individual
 
       2.  Two or more individuals      The actual owner of the
           (joint account)              account or, if combined
                                        funds, any one of the
                                        individuals(1)
 
       3.  Husband and wife (joint      The actual owner of the
           account)                     account or, if joint
                                        funds, either person(1)
 
       4.  Custodian account of a       The minor(2)
           minor (Uniform Gift to
           Minors Act)
 
       5.  Adult and minor (joint       The adult or, if the
           account)                     minor is the only
                                        contributor, the minor(1)
 
       6.  Account in the name of       The ward, minor, or
           guardian or committee for a  incompetent person(3)
           designated ward, minor, or
           incompetent person
 
       7.  a. The usual revocable       The grantor-trustee(1)
           savings trust account
              (grantor is also
              trustee)
 
           b. So-called trust account   The actual owner(1)
           that is not a legal or
              valid trust under State
              law
 
       8.  Sole proprietorship account  The owner(4)
</TABLE>
 
- ----------------------------------------------------------
 
- ----------------------------------------------------------
 
<TABLE>
<CAPTION>

<S>                                     <C>
                                        GIVE THE EMPLOYER
FOR THIS TYPE OF ACCOUNT:               IDENTIFICATION
                                        NUMBER OF--
</TABLE>
 
- ----------------------------------------------------------
 
<TABLE>
<C>        <S>                          <C>
       9.  A valid trust, estate, or    The legal entity (Do not
           pension trust                furnish the identifying
                                        number of the personal
                                        representative or trustee
                                        unless the legal entity
                                        itself is not designated
                                        in the account title.)(5)
 
      10.  Corporate account            The corporation
 
      11.  Religious, charitable, or    The organization
           educational organization
           account
 
      12.  Partnership account held in  The partnership
           the name of the business
 
      13.  Association, club or other   The organization
           tax-exempt organization
 
      14.  A broker or registered       The broker or nominee
           nominee
 
      15.  Account with the Department  The public entity
           of Agriculture in the name
           of a public entity (such as
           a State or local
           government, school
           district, or prison) that
           receives agricultural
           program payments
</TABLE>
 
- ----------------------------------------------
 
(1) List first and circle the name of the person whose number you furnish.
 
(2) Circle the minor's name and furnish the minor's social security number.
 
(3) Circle the ward's,  minor's or  incompetent person's name  and furnish  such
    person's social security number.
 
(4) Show the name of the owner.
 
(5) List first and circle the name of the legal trust, estate or pension trust.
 
NOTE: If no name is circled when there is more than one name, the number will be
      considered to be that of the first name listed.
<PAGE>
            GUIDELINES FOR CERTIFICATION OF TAXPAYER IDENTIFICATION
                         NUMBER ON SUBSTITUTE FORM W-9
                                     PAGE 2
 
OBTAINING A NUMBER
 
If  you  don't have  a taxpayer  identification  number or  you don't  know your
number, obtain Form SS-5, Application for a Social Security Number Card, or Form
SS-4, Application for Employer Identification Number, at the local office of the
Social Security Administration or the Internal  Revenue Service and apply for  a
number.
 
PAYEES EXEMPT FROM BACKUP WITHHOLDING
 
Payees specifically exempted from backup withholding on ALL payments include the
following:
 
 - A corporation.
 
 - A financial institution.
 
 - An  organization  exempt  from tax  under  section 501(a),  or  an individual
   retirement plan.
 
 - The United States or any agency or instrumentality thereof.
 
 - A State, the District of Columbia, a possession of the United States, or  any
   subdivision or instrumentality thereof.
 
 - A foreign government, a political subdivision of a foreign government, or any
   agency or instrumentality thereof.
 
 - An international organization or any agency or instrumentality thereof.
 
 - A  registered dealer in securities or commodities registered in the U.S. or a
   possession of the U.S.
 
 - A real estate investment trust.
 
 - A common trust fund operated by a bank under section 584(a).
 
 - An exempt  charitable remainder  trust, or  a non-exempt  trust described  in
   section 4947(a)(1).
 
 - An entity registered at all times under the Investment Company Act of 1940.
 
 - A foreign central bank of issue.
 
    Payments  of  dividends and  patronage  dividends not  generally  subject to
backup withholding include the following:
 
 - Payments to nonresident aliens subject to withholding under section 1441.
 
 - Payments to partnerships not engaged in a  trade or business in the U.S.  and
   which have at least one nonresident partner.
 
 - Payments  of patronage  dividends where  the amount  received is  not paid in
   money.
 
 - Payments made by certain foreign organizations.
 
 - Payments made to a nominee.
 
    Payments of interest not generally subject to backup withholding include the
following:
 
 - Payments of interest on obligations issued  by individuals. NOTE: You may  be
   subject to backup withholding if this interest is $600 or more and is paid in
   the  course of the payer's  trade or business and  you have not provided your
   correct taxpayer identification number to the payer.
 
 - Payments of tax-exempt  interest (including  exempt-interest dividends  under
   section 852).
 
 - Payments described in section 6049(b)(5) to non-resident aliens.
 
 - Payments on tax-free covenant bonds under section 1451.
 
 - Payments made by certain foreign organizations.
 
 - Payments made to a nominee.
 
Exempt  payees described above should file  Form W-9 to avoid possible erroneous
backup withholding.
 
FILE THIS  FORM WITH  THE PAYER,  FURNISH YOUR  TAXPAYER IDENTIFICATION  NUMBER,
WRITE  "EXEMPT" ON  THE FACE OF  THE FORM,  AND RETURN IT  TO THE  PAYER. IF THE
PAYMENTS ARE INTEREST, DIVIDENDS, OR PATRONAGE DIVIDENDS, ALSO SIGN AND DATE THE
FORM.
 
    Certain payments, other  than interest, dividends  and patronage  dividends,
that  are not subject  to information reporting  are also not  subject to backup
withholding. For details,  see the  regulations under  sections 6041,  6041A(a),
6045 and 6050A.
 
PRIVACY   ACT  NOTICE.--Section  6109  requires  most  recipients  of  dividend,
interest, or other payments  to give taxpayer  identification numbers to  payers
who  must report the  payments to IRS.  IRS uses the  numbers for identification
purposes. Payers  must  be given  the  numbers  whether or  not  recipients  are
required  to file  tax returns.  Payers must  generally withhold  31% of taxable
interest, dividend, and certain other payments to a payee who does not furnish a
taxpayer identification number to a payer. Certain penalties may also apply.
 
PENALTIES
 
(1) PENALTY FOR  FAILURE TO FURNISH  TAXPAYER IDENTIFICATION NUMBER.  -- If  you
fail  to furnish your taxpayer identification number to a payer, you are subject
to a  penalty of  $50  for each  such  failure unless  your  failure is  due  to
reasonable cause and not to willful neglect.
 
(2)  CIVIL PENALTY FOR FALSE INFORMATION WITH  RESPECT TO WITHHOLDING. -- If you
make a false statement with no  reasonable basis which results in no  imposition
of backup withholding, you are subject to a penalty of $500.
 
(3) CRIMINAL PENALTY FOR FALSIFYING INFORMATION. -- Falsifying certifications or
affirmations  may  subject  you  to criminal  penalties  including  fines and/or
imprisonment.
 
FOR ADDITIONAL INFORMATION CONTACT YOUR  TAX CONSULTANT OR THE INTERNAL  REVENUE
SERVICE.

<PAGE>

                                                  Draft 6/18/96









                                CREDIT AGREEMENT



                                  BY AND AMONG


                               VARLEN CORPORATION,
                           THE BORROWING SUBSIDIARIES
                            AND LENDERS PARTY HERETO


                                       AND



                       THE FIRST NATIONAL BANK OF CHICAGO,
                                    AS AGENT



                            DATED AS OF JULY __, 1996
<PAGE>

                                TABLE OF CONTENTS


ARTICLE I
     DEFINITIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Page 1

ARTICLE II
     THE CREDITS . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 21
      2.1.  COMMITMENT . . . . . . . . . . . . . . . . . . . . . . . . . Page 21
            2.1.1.   FACILITY A LOANS. . . . . . . . . . . . . . . . . . Page 21
            2.1.2.   FACILITY B LOANS. . . . . . . . . . . . . . . . . . Page 23
      2.2.  RATABLE LOANS; TYPES OF ADVANCES . . . . . . . . . . . . . . Page 23
      2.3.  MINIMUM AMOUNT OF EACH ADVANCE . . . . . . . . . . . . . . . Page 24
      2.4.  FEES . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 24
            2.4.1.   COMMITMENT FEE. . . . . . . . . . . . . . . . . . . Page 24
            2.4.2.   UPFRONT FEE . . . . . . . . . . . . . . . . . . . . Page 24
            2.4.3.   AGENT FEES. . . . . . . . . . . . . . . . . . . . . Page 24
     2.5    APPLICABLE MARGIN. . . . . . . . . . . . . . . . . . . . . . Page 24
     2.6    REDUCTIONS IN AGGREGATE FACILITY B COMMITMENT. . . . . . . . Page 26
     2.7.   PRINCIPAL PAYMENTS . . . . . . . . . . . . . . . . . . . . . Page 26
            2.7.1.   OPTIONAL PAYMENTS . . . . . . . . . . . . . . . . . Page 26
            2.7.2.   CURRENCY FLUCTUATIONS; PERMITTED EXCESS OVER
                      AGGREGATE COMMITMENT . . . . . . . . . . . . . . . Page 26
            2.7.3.   TERMINATION . . . . . . . . . . . . . . . . . . . . Page 27
            2.7.4.   MANDATORY PREPAYMENTS . . . . . . . . . . . . . . . Page 27
      2.8.  METHOD OF SELECTING TYPES AND INTEREST PERIODS FOR NEW
             ADVANCES. . . . . . . . . . . . . . . . . . . . . . . . . . Page 28
      2.9.  CONVERSION AND CONTINUATION OF OUTSTANDING ADVANCES. . . . . Page 29
            2.9.1.   DOLLAR ADVANCES . . . . . . . . . . . . . . . . . . Page 29
            2.9.2.   FOREIGN CURRENCY ADVANCES . . . . . . . . . . . . . Page 29
            2.9.3.   GENERAL PROVISIONS. . . . . . . . . . . . . . . . . Page 29
     2.10.  CHANGES IN INTEREST RATE, ETC. . . . . . . . . . . . . . . . Page 30
     2.11.  RATES APPLICABLE AFTER DEFAULT . . . . . . . . . . . . . . . Page 30
     2.12.  METHOD OF PAYMENT. . . . . . . . . . . . . . . . . . . . . . Page 31
            2.12.1.  GENERAL . . . . . . . . . . . . . . . . . . . . . . Page 31
            2.12.2.  CURRENCY OF PAYMENT . . . . . . . . . . . . . . . . Page 31
     2.13.  NOTES; TELEPHONIC NOTICES. . . . . . . . . . . . . . . . . . Page 31
     2.14.  INTEREST PAYMENT DATES; INTEREST AND FEE BASIS . . . . . . . Page 32
     2.15.  NOTIFICATION BY AGENT. . . . . . . . . . . . . . . . . . . . Page 32
     2.16.  LENDING INSTALLATIONS. . . . . . . . . . . . . . . . . . . . Page 32
     2.17.  NON-RECEIPT OF FUNDS BY THE AGENT. . . . . . . . . . . . . . Page 32
     2.18.  WITHHOLDING TAX EXEMPTION. . . . . . . . . . . . . . . . . . Page 33
     2.19.  EXTENSION OF FACILITY B TERMINATION DATE . . . . . . . . . . Page 33
     2.20.  CHANGE IN CIRCUMSTANCES. . . . . . . . . . . . . . . . . . . Page 34


                                       -i-
<PAGE>

            2.20.1.  TAXES . . . . . . . . . . . . . . . . . . . . . . . Page 34
            2.20.2.  YIELD PROTECTION. . . . . . . . . . . . . . . . . . Page 35
            2.20.3.  CHANGES IN CAPITAL ADEQUACY REGULATIONS . . . . . . Page 36
            2.20.4.  AVAILABILITY OF TYPES OF ADVANCES . . . . . . . . . Page 37
            2.20.5.  FUNDING INDEMNIFICATION . . . . . . . . . . . . . . Page 37
            2.20.6.  LENDER STATEMENTS; SURVIVAL OF INDEMNITY. . . . . . Page 37

ARTICLE III
     THE LETTER OF CREDIT SUBFACILITY. . . . . . . . . . . . . . . . . . Page 38
     3.1.   OBLIGATION TO ISSUE. . . . . . . . . . . . . . . . . . . . . Page 38
     3.2.   TYPES AND AMOUNTS. . . . . . . . . . . . . . . . . . . . . . Page 38
     3.3.   CONDITIONS . . . . . . . . . . . . . . . . . . . . . . . . . Page 39
     3.4.   PROCEDURE FOR ISSUANCE OF FACILITY B LETTERS OF CREDIT . . . Page 39
     3.5.   REIMBURSEMENT OBLIGATIONS; AUTOMATIC ALTERNATE BASE RATE
             ADVANCE; DUTIES OF ISSUING BANKS. . . . . . . . . . . . . . Page 41
     3.6.   PARTICIPATION. . . . . . . . . . . . . . . . . . . . . . . . Page 41
     3.7.   PAYMENT OF REIMBURSEMENT OBLIGATIONS . . . . . . . . . . . . Page 43
     3.8.   COMPENSATION FOR FACILITY B LETTERS OF CREDIT. . . . . . . . Page 44
     3.9.   LETTER OF CREDIT COLLATERAL ACCOUNT. . . . . . . . . . . . . Page 44

ARTICLE IV
     CONDITIONS PRECEDENT. . . . . . . . . . . . . . . . . . . . . . . . Page 45
     4.1.   INITIAL ADVANCE AND FACILITY B LETTER OF CREDIT. . . . . . . Page 45
     4.2.   EACH ADVANCE AND FACILITY B LETTER OF CREDIT . . . . . . . . Page 46
     4.3.   FIRST ADVANCE OR FACILITY B LETTER OF CREDIT TO NEW
             BORROWING SUBSIDIARIES. . . . . . . . . . . . . . . . . . . Page 46
     4.4.   FACILITY A ADVANCE IN CONNECTION WITH OFFER TO PURCHASE. . . Page 47
     4.5.   FACILITY A ADVANCE IN CONNECTION WITH MERGER . . . . . . . . Page 48

ARTICLE V
     REPRESENTATIONS AND WARRANTIES OF BORROWER. . . . . . . . . . . . . Page 49
      5.1.  CORPORATE EXISTENCE AND STANDING . . . . . . . . . . . . . . Page 49
      5.2.  AUTHORIZATION AND VALIDITY . . . . . . . . . . . . . . . . . Page 49
      5.3.  NO CONFLICT; GOVERNMENT CONSENT. . . . . . . . . . . . . . . Page 50
      5.4.  FINANCIAL STATEMENTS . . . . . . . . . . . . . . . . . . . . Page 50
      5.5.  MATERIAL ADVERSE CHANGE. . . . . . . . . . . . . . . . . . . Page 50
      5.6.  TAXES. . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 50
      5.7.  LITIGATION AND CONTINGENT OBLIGATIONS. . . . . . . . . . . . Page 51
      5.8.  SUBSIDIARIES . . . . . . . . . . . . . . . . . . . . . . . . Page 51
      5.9.  ERISA. . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 51
     5.10.  ACCURACY OF INFORMATION. . . . . . . . . . . . . . . . . . . Page 51
     5.11.  REGULATIONS G, T, U, AND X . . . . . . . . . . . . . . . . . Page 51


                                      -ii-
<PAGE>

     5.12.  MATERIAL AGREEMENTS. . . . . . . . . . . . . . . . . . . . . Page 52
     5.13.  COMPLIANCE WITH LAWS . . . . . . . . . . . . . . . . . . . . Page 52
     5.14.  OWNERSHIP OF PROPERTIES. . . . . . . . . . . . . . . . . . . Page 52
     5.15.  INVESTMENT COMPANY ACT . . . . . . . . . . . . . . . . . . . Page 52
     5.16.  PUBLIC UTILITY HOLDING COMPANY ACT . . . . . . . . . . . . . Page 52
     5.17.  SUBORDINATED INDEBTEDNESS. . . . . . . . . . . . . . . . . . Page 52
     5.18.  INSURANCE. . . . . . . . . . . . . . . . . . . . . . . . . . Page 52
     5.19.  SOLVENCY . . . . . . . . . . . . . . . . . . . . . . . . . . Page 53
     5.20.  BENEFITS . . . . . . . . . . . . . . . . . . . . . . . . . . Page 53

ARTICLE V-A
     REPRESENTATIONS AND WARRANTIES OF BORROWING SUBSIDIARIES. . . . . . Page 53
     5A.1.  CORPORATE EXISTENCE AND STANDING . . . . . . . . . . . . . . Page 53
     5A.2.  AUTHORIZATION AND VALIDITY . . . . . . . . . . . . . . . . . Page 54
     5A.3.  NO CONFLICT; GOVERNMENT CONSENT. . . . . . . . . . . . . . . Page 54
     5A.4.  FILING . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 54
     5A.5.  NO IMMUNITY. . . . . . . . . . . . . . . . . . . . . . . . . Page 55
     5A.6.  INVESTMENT COMPANY ACT . . . . . . . . . . . . . . . . . . . Page 55
     5A.7.  PUBLIC UTILITY HOLDING COMPANY ACT . . . . . . . . . . . . . Page 55
     5A.8.  REGULATION U . . . . . . . . . . . . . . . . . . . . . . . . Page 55

ARTICLE VI
     COVENANTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 55
      6.1.  FINANCIAL REPORTING. . . . . . . . . . . . . . . . . . . . . Page 55
      6.2.  USE OF PROCEEDS. . . . . . . . . . . . . . . . . . . . . . . Page 57
      6.3.  NOTICE OF DEFAULT. . . . . . . . . . . . . . . . . . . . . . Page 57
      6.4.  CONDUCT OF BUSINESS. . . . . . . . . . . . . . . . . . . . . Page 57
      6.5.  TAXES. . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 57
      6.6.  INSURANCE. . . . . . . . . . . . . . . . . . . . . . . . . . Page 57
      6.7.  COMPLIANCE WITH LAWS . . . . . . . . . . . . . . . . . . . . Page 58
      6.8.  MAINTENANCE OF PROPERTIES. . . . . . . . . . . . . . . . . . Page 58
      6.9.  INSPECTION . . . . . . . . . . . . . . . . . . . . . . . . . Page 58
     6.10.  DIVIDENDS. . . . . . . . . . . . . . . . . . . . . . . . . . Page 58
     6.11.  INDEBTEDNESS . . . . . . . . . . . . . . . . . . . . . . . . Page 58
     6.12.  MERGER . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 59
     6.13.  SALE OF ASSETS . . . . . . . . . . . . . . . . . . . . . . . Page 59
     6.14.  SALE OF ACCOUNTS . . . . . . . . . . . . . . . . . . . . . . Page 60
     6.15.  SALE AND LEASEBACK . . . . . . . . . . . . . . . . . . . . . Page 60
     6.16.  INVESTMENTS AND ACQUISITIONS . . . . . . . . . . . . . . . . Page 60
     6.17.  LIENS. . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 61
     6.18.  FIXED ASSET EXPENDITURES . . . . . . . . . . . . . . . . . . Page 63
     6.19.  RENTALS. . . . . . . . . . . . . . . . . . . . . . . . . . . Page 63


                                      -iii-
<PAGE>

     6.20.  AFFILIATES . . . . . . . . . . . . . . . . . . . . . . . . . Page 63
     6.21.  SUBORDINATED INDEBTEDNESS. . . . . . . . . . . . . . . . . . Page 63
     6.22.  FINANCIAL COVENANTS. . . . . . . . . . . . . . . . . . . . . Page 64
            6.22.1.  INTEREST COVERAGE RATIO . . . . . . . . . . . . . . Page 64
            6.22.2.  LEVERAGE RATIO. . . . . . . . . . . . . . . . . . . Page 64
            6.22.3.  OPERATING CASH FLOW TO SENIOR DEBT. . . . . . . . . Page 64
            6.22.4.  NET WORTH . . . . . . . . . . . . . . . . . . . . . Page 64
     6.23.  FOREIGN ASSETS . . . . . . . . . . . . . . . . . . . . . . . Page 64
     6.24.  RATE HEDGING OBLIGATIONS . . . . . . . . . . . . . . . . . . Page 64
     6.25.  INTEREST RATE AGREEMENTS . . . . . . . . . . . . . . . . . . Page 64
     6.26.  CONSUMMATION OF MERGER . . . . . . . . . . . . . . . . . . . Page 65

ARTICLE VII
     DEFAULTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 65

ARTICLE VIII
     ACCELERATION, WAIVERS, AMENDMENTS AND REMEDIES. . . . . . . . . . . Page 67
      8.1.  ACCELERATION . . . . . . . . . . . . . . . . . . . . . . . . Page 67
      8.2.  AMENDMENTS . . . . . . . . . . . . . . . . . . . . . . . . . Page 67
      8.3.  PRESERVATION OF RIGHTS . . . . . . . . . . . . . . . . . . . Page 68

ARTICLE IX
     GENERAL PROVISIONS. . . . . . . . . . . . . . . . . . . . . . . . . Page 69
      9.1.  SURVIVAL OF REPRESENTATIONS. . . . . . . . . . . . . . . . . Page 69
      9.2.  GOVERNMENTAL REGULATION. . . . . . . . . . . . . . . . . . . Page 69
      9.3.  TAXES. . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 69
      9.4.  HEADINGS . . . . . . . . . . . . . . . . . . . . . . . . . . Page 69
      9.5.  ENTIRE AGREEMENT . . . . . . . . . . . . . . . . . . . . . . Page 69
      9.6.  SEVERAL OBLIGATIONS; BENEFITS OF THIS AGREEMENT. . . . . . . Page 69
      9.7.  EXPENSES; INDEMNIFICATION. . . . . . . . . . . . . . . . . . Page 69
      9.8.  NUMBERS OF DOCUMENTS . . . . . . . . . . . . . . . . . . . . Page 70
      9.9.  ACCOUNTING . . . . . . . . . . . . . . . . . . . . . . . . . Page 70
     9.10.  SEVERABILITY OF PROVISIONS . . . . . . . . . . . . . . . . . Page 70
     9.11.  NONLIABILITY OF LENDERS. . . . . . . . . . . . . . . . . . . Page 70
     9.12.  LANGUAGE . . . . . . . . . . . . . . . . . . . . . . . . . . Page 70
     9.13.  CHOICE OF LAW. . . . . . . . . . . . . . . . . . . . . . . . Page 70
     9.14.  CONSENT TO JURISDICTION. . . . . . . . . . . . . . . . . . . Page 71
     9.15.  SERVICE OF PROCESS . . . . . . . . . . . . . . . . . . . . . Page 71
     9.16.  WAIVER OF JURY TRIAL . . . . . . . . . . . . . . . . . . . . Page 71
     9.17.  ERISA REPRESENTATION . . . . . . . . . . . . . . . . . . . . Page 72
     9.18.  CONFIDENTIALITY. . . . . . . . . . . . . . . . . . . . . . . Page 72
     9.19.  JOINT AND SEVERAL LIABILITY. . . . . . . . . . . . . . . . . Page 72


                                      -iv-
<PAGE>

ARTICLE X
     THE AGENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 72
     10.1.  APPOINTMENT. . . . . . . . . . . . . . . . . . . . . . . . . Page 72
     10.2.  POWERS . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 72
     10.3.  GENERAL IMMUNITY . . . . . . . . . . . . . . . . . . . . . . Page 73
     10.4.  NO RESPONSIBILITY FOR LOANS, RECITALS, ETC.. . . . . . . . . Page 73
     10.5.  ACTION ON INSTRUCTIONS OF LENDERS. . . . . . . . . . . . . . Page 73
     10.6.  EMPLOYMENT OF AGENTS AND COUNSEL . . . . . . . . . . . . . . Page 73
     10.7.  RELIANCE ON DOCUMENTS; COUNSEL . . . . . . . . . . . . . . . Page 73
     10.8.  AGENT'S REIMBURSEMENT AND INDEMNIFICATION. . . . . . . . . . Page 74
     10.9.  RIGHTS AS A LENDER . . . . . . . . . . . . . . . . . . . . . Page 74
     10.l0. LENDER CREDIT DECISION . . . . . . . . . . . . . . . . . . . Page 74
     10.11. SUCCESSOR AGENT. . . . . . . . . . . . . . . . . . . . . . . Page 74

ARTICLE XI
     SETOFF; RATABLE PAYMENTS. . . . . . . . . . . . . . . . . . . . . . Page 75
     11.1.  SETOFF . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 75
     11.2.  RATABLE PAYMENTS . . . . . . . . . . . . . . . . . . . . . . Page 75

ARTICLE XII
     BENEFIT OF AGREEMENT; ASSIGNMENTS; PARTICIPATIONS . . . . . . . . . Page 75
     12.1.  SUCCESSORS AND ASSIGNS . . . . . . . . . . . . . . . . . . . Page 75
     12.2.  PARTICIPATIONS . . . . . . . . . . . . . . . . . . . . . . . Page 76
            12.2.1   PERMITTED PARTICIPANTS; EFFECT. . . . . . . . . . . Page 76
            12.2.2.  BENEFIT OF SETOFF . . . . . . . . . . . . . . . . . Page 76
     12.3.  ASSIGNMENTS. . . . . . . . . . . . . . . . . . . . . . . . . Page 76
            12.3.1.  PERMITTED ASSIGNMENTS . . . . . . . . . . . . . . . Page 77
            12.3.2.  EFFECT; EFFECTIVE DATE. . . . . . . . . . . . . . . Page 77
     12.4.  DISSEMINATION OF INFORMATION . . . . . . . . . . . . . . . . Page 77
     12.5.  TAX TREATMENT. . . . . . . . . . . . . . . . . . . . . . . . Page 78

ARTICLE XIII
     NOTICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 78
     13.1.  GIVING NOTICE. . . . . . . . . . . . . . . . . . . . . . . . Page 78
     13.2.  CHANGE OF ADDRESS. . . . . . . . . . . . . . . . . . . . . . Page 78


                                       -v-
<PAGE>

ARTICLE XIV
     BORROWER RESPONSIBILITY FOR BORROWING SUBSIDIARY OBLIGATIONS. . . . Page 78
     14.1   DIRECT OBLIGATIONS . . . . . . . . . . . . . . . . . . . . . Page 78
     14.2   OBLIGATIONS UNCONDITIONAL. . . . . . . . . . . . . . . . . . Page 78
     14.3.  DISCHARGE ONLY UPON PAYMENT IN FULL; REINSTATEMENT IN
             CERTAIN CIRCUMSTANCES . . . . . . . . . . . . . . . . . . . Page 79
     14.4.  WAIVER . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 79
     14.5.  STAY OF ACCELERATION . . . . . . . . . . . . . . . . . . . . Page 80
     14.6   PAYMENTS . . . . . . . . . . . . . . . . . . . . . . . . . . Page 80
     14.7   SUBROGATION. . . . . . . . . . . . . . . . . . . . . . . . . Page 80

ARTICLE XV
     COUNTERPARTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . Page 81


EXHIBITS
     EXHIBIT A-1     BORROWER NOTE
     EXHIBIT A-2A    BORROWING SUBSIDIARY NOTE
     EXHIBIT A-2B    BORROWING SUBSIDIARY NOTE
     EXHIBIT B       ELECTION TO PARTICIPATE
     EXHIBIT C       FORM OF APPLICATION FOR STANDBY FACILITY LETTER OF CREDIT
     EXHIBIT D-1     FORM OF OPINION OF COUNSEL TO BORROWER
     EXHIBIT D-2     FORM OF OPINION OF COUNSEL TO BORROWING SUBSIDIARY
     EXHIBIT D-3     FORM OF OPINION OF COUNSEL IN CONNECTION WITH OFFER TO
                     PURCHASE
     EXHIBIT E       LOAN/CREDIT RELATED MONEY TRANSFER INSTRUCTION
     EXHIBIT F       COMPLIANCE CERTIFICATE
     EXHIBIT G       FORM OF SUBSIDIARY GUARANTY
     EXHIBIT H       ASSIGNMENT AGREEMENT

SCHEDULES
     SCHEDULE 1      PERCENTAGES
     SCHEDULE 2      LENDING INSTALLATIONS
     SCHEDULE 3      LITIGATION
     SCHEDULE 4      SUBSIDIARIES AND OTHER INVESTMENTS
     SCHEDULE 5      INDEBTEDNESS AND LIENS
     SCHEDULE 6      EXISTING LETTERS OF CREDIT



                                      -vi-
<PAGE>


                                CREDIT AGREEMENT


     This Agreement, dated as of July __, 1996, is among Varlen Corporation, a
Delaware corporation, the Borrowing Subsidiaries who may from time to time
become party hereto, the Lenders and The First National Bank of Chicago, as
Agent.  The parties hereto agree as follows:

                                    ARTICLE I

                                   DEFINITIONS

     As used in this Agreement:

     "ACQUISITION" means any transaction, or any series of related transactions,
consummated on or after the date of this Agreement, by which the Borrower or any
of its Subsidiaries (i) acquires (A) all or a substantial part of the assets
(other than through a purchase of inventory in the ordinary course of business),
(B) one or more manufacturing lines or (C) a going business or division, of any
Person whether through purchase of assets, merger or otherwise or (ii) directly
or indirectly acquires (in one transaction or as the most recent transaction in
a series of transactions) control of at least 10% (in number of votes) of the
securities of a corporation which have ordinary voting power for the election of
directors (other than securities having such power only by reason of the
happening of a contingency) or a 10% (by percentage or voting power) ownership
interest in any partnership, joint venture or limited liability company (other
than corporate partnerships or joint ventures covered by the preceding clause).

     "ACQUISITION AGREEMENT" is defined in SECTION 4.4.

     "ACQUISITION SUBSIDIARY" means BAS, Inc., a Virginia corporation, and its
permitted successors and assigns.

     "ADVANCE" means a borrowing hereunder consisting of the aggregate amount of
the several Loans made by the Lenders to the Borrower or any other Borrowing
Entity of the same Type and, in the case of Eurocurrency Advances, denominated
in the same Eurocurrency and, in the case of Fixed Rate Advances, for the same
Interest Period.

     "AFFILIATE" of any Person means any other Person directly or indirectly
controlling, controlled by or under common control with such Person.  A Person
shall be deemed to control another Person if the controlling Person owns 20% or
more of any class of equity securities (or other ownership interests) of the
controlled Person having the right to elect directors (or similar Persons)
without the happening of a contingency or possesses, directly or indirectly, the
power to direct or cause the direction of the management or policies of the
controlled Person, whether through ownership of stock, membership interests, by
contract or otherwise.

     "AGENT" means The First National Bank of Chicago in its capacity as
contractual representative for the Lenders pursuant to Article X, and not in its
individual capacity as a Lender, and any successor Agent appointed pursuant to
Article X.
<PAGE>

     "AGGREGATE AVAILABLE COMMITMENT" means at any time the Aggregate Commitment
MINUS the Facility B Letter of Credit Obligations.

     "AGGREGATE COMMITMENT" means the sum of the Aggregate Facility A Commitment
and the Aggregate Facility B Commitment.

     "AGGREGATE FACILITY A COMMITMENT" means [ $135,000,000], as such amount may
be reduced from time to time pursuant to the terms hereof.

     "AGGREGATE FACILITY B COMMITMENT" means [$55,000,000], as such amount may
be reduced from time to time pursuant to the terms hereof.

     "AGREEMENT" means this credit agreement, as it may be amended, modified,
supplemented and/or restated, and as in effect from time to time.

     "AGREEMENT ACCOUNTING PRINCIPLES" means generally accepted accounting
principles as in effect as of the date of this Agreement, applied in a manner
consistent with that used in preparing the financial statements referred to in
SECTION 5.4.

     "ALTERNATE BASE RATE" means, for any day, a rate of interest per annum
equal to the sum of (i) the percentage indicated as the Applicable Margin for
the Alternate Base Rate and (ii) the higher of (a) the Corporate Base Rate for
such day and (b) the sum of Federal Funds Effective Rate for such day plus 1/2%
per annum.

     "ALTERNATE BASE RATE ADVANCE" means an Advance which bears interest at the
Alternate Base Rate.

     "ALTERNATE BASE RATE LOAN" means a Loan which bears interest at the
Alternate Base Rate.

     "APPLICABLE MARGIN" means, at any date of determination thereof with
respect to any Advance, the commitment fees payable pursuant to SECTION 2.4.1
and Facility B Letter of Credit Fees, the respective rates per annum for such
Advance, commitment fees and Facility B Letter of Credit Fees calculated in
accordance with the terms of SECTION 2.5.

     "ARTICLE" means an article of this Agreement unless another document is
specifically referenced.

     "ASSESSMENT RATE" means, for any CD Interest Period, the assessment rate
per annum (rounded upwards to the next higher multiple of 1/100 of 1% if the
rate is not such a multiple) payable to the Federal Deposit Insurance
Corporation (or any successor) for the insurance of domestic time deposits of
First Chicago, as determined by First Chicago on the first day of such CD
Interest Period.

     "ASSET SALE"  means with respect to any Person, (i) the sale, lease,
conveyance, disposition or other transfer by such Person of any of its assets
(including by way of a sale-leaseback transaction and including the sale or
other transfer of any of the capital stock of any Subsidiary of such Person)


                                     Page 2
<PAGE>

or (ii) the issuance, sale, conveyance, disposition or other transfer by such
Person (other than the Borrower) of any capital stock of such Person; PROVIDED,
HOWEVER, that notwithstanding the foregoing, the term "Asset Sale" shall not
include the sale of any inventory in the ordinary course of business.

     "AUTHORIZED OFFICER" (i) of the Borrower means the President, the Vice
President, Finance and Chief Financial Officer, the Executive Vice President or
any Group Vice President thereof, and (ii) of any other Borrowing Entity means
the President, any Managing Director or any Controller/Treasurer thereof, each
such enumerated Person acting singly.

     "BORROWER" means Varlen Corporation, a Delaware corporation, and its
permitted successors and assigns.

     "BORROWER NOTE" means a promissory note, in substantially the form of
EXHIBIT A-1 hereto, duly executed by the Borrower and payable to the order of a
Lender in a principal amount up to and including its Commitment, including any
amendment, modification, renewal or replacement of such promissory note.

     "BORROWING DATE" means a date on which an Advance is or is to be made
hereunder or a Facility B Letter of Credit is or is to be issued hereunder.

     "BORROWING ENTITIES" means (i) with respect to a Facility A Loan, the
Acquisition Subsidiary and (ii) with respect to a Facility B Loan, the Borrower
and any Borrowing Subsidiaries.

     "BORROWING NOTICE" is defined in SECTION 2.8.

     "BORROWING SUBSIDIARY" means any Wholly-Owned Subsidiary, including without
limitation the Acquisition Subsidiary,  which has satisfied the provisions of
SECTION 4.3 hereof, and its permitted successors and assigns.

     "BORROWING SUBSIDIARY NOTE" means (i) in connection with the Facility A
Loans, a promissory note in substantially the form of EXHIBIT A-2A hereto, duly
executed by the Acquisition Subsidiary and payable to the order of a Lender in a
principal amount less than or equal to its Facility A Commitment, including any
amendment, modification, renewal or replacement of such promissory note and (ii)
in connection with the Facility B Loans, a promissory note, in substantially the
form of EXHIBIT A-2B hereto, duly executed by a Borrowing Subsidiary and payable
to the order of a Lender in a principal amount up to and including its Facility
B Commitment, including any amendment, modification, renewal or replacement of
such promissory note.

     "BORROWING SUBSIDIARY OBLIGATIONS" means, with respect to each Borrowing
Subsidiary, any and all amounts or obligations payable or performable by such
Borrowing Subsidiary under or in respect of this Agreement or its Borrowing
Subsidiary Note, including without limitation all principal and interest payable
hereunder or under such Borrowing Subsidiary Note in respect of Loans made to
such Borrowing Subsidiary and all obligations arising under or resulting from
any Facility B Letter of Credit issued for the benefit and upon the application
of such Borrowing Subsidiary.


                                     Page 3
<PAGE>

     "BRENCO" means Brenco, Incorporated, a Virginia corporation.

     "BRENCO ACQUISITION" means the acquisition of Brenco by the Acquisition
Subsidiary and the Borrower pursuant to the Acquisition Agreement.  The Brenco
Acquisition shall be consummated in two stages: (i) the purchase of shares of
common stock of Brenco by the Acquisition Subsidiary pursuant to the Offer to
Purchase and (ii) the Merger.

     "BUSINESS DAY" means (i) with respect to any borrowing, payment or rate
selection of Eurocurrency Advances, a day (other than a Saturday or Sunday) on
which banks generally are open in Chicago, New York, London and, for currencies
other than Eurodollars, the principal financial center of the country in whose
currency the Advance is to be funded, for the conduct of commercial lending
activities and on which dealings in the relevant Eurocurrency are carried on in
the London interbank market and (ii) for all other purposes, a day (other than a
Saturday or Sunday) on which banks generally are open in Chicago for the conduct
of commercial lending activities.

     "CAPITALIZED LEASE" of a Person means any lease of Property by such Person
as lessee which would be capitalized on a balance sheet of such Person prepared
in accordance with Agreement Accounting Principles.

     "CAPITALIZED LEASE OBLIGATIONS" of a Person means the amount of the
obligations of such Person under Capitalized Leases which would be shown as a
liability on a balance sheet of such Person prepared in accordance with
Agreement Accounting Principles.

     "CASH EQUIVALENTS" means (i) marketable direct obligations issued or
unconditionally guaranteed by the United States government and backed by the
full faith and credit of the United States government; (ii) domestic and
Eurodollar certificates of deposit and time deposits, bankers' acceptances and
floating rate certificates of deposit issued by any commercial bank organized
under the laws of the United States, any state thereof, the District of
Columbia, any foreign bank, or its branches or agencies (fully protected against
currency fluctuations for any such deposits with a term of more than ten (10)
days); (iii) shares of money market, mutual or similar funds having assets in
excess of $100,000,000 and the investments of which are limited to investment
grade securities (i.e., securities rated at least Baa by Moody's Investors
Service, Inc. or at least BBB by Standard & Poor's Corporation) and (iv)
commercial paper of United States and foreign banks and bank holding companies
and their subsidiaries and United States and foreign finance, commercial
industrial or utility companies which, at the time of acquisition, are rated A-1
(or better) by Standard & Poor's Corporation or P-1 (or better) by Moody's
Investors Services, Inc.; PROVIDED that the maturities of such Cash Equivalents
shall not exceed 365 days.

     "CASH FLOW INCURRENCE TEST" means, with respect to any Acquisition, a pro-
forma incurrence test, calculated as of the most recent fiscal quarter of the
Borrower for which the Borrower was obligated (pursuant to SECTION 6.1) to
deliver financial statements on or prior to such date of calculation (the "End
Quarter"), the satisfaction of which requires THE RATIO OF:

          (i) the sum of (a) Operating Cash Flow for such End Quarter and
     the three immediately preceding fiscal quarters PLUS (b) either (1)
     EBITDA of the Target of the Acquisition for such End Quarter and the
     three immediately preceding fiscal quarters


                                     Page 4
<PAGE>

     (PROVIDED that if the fiscal quarters of such Target are not coterminous
     with those of the Borrower, then for the most recently ended fiscal quarter
     of such Target for which financial statements are available and which ended
     within 75 days of the last day of the End Quarter and the three immediately
     preceding fiscal quarters of such Target) or (2) if the Borrower is
     acquiring 50% or less of the Target of such Acquisition (and the
     Acquisition is of voting stock or other ownership interests in a Person)
     and the acquisition agreement (or other relevant document) (x) requires the
     payment of any Mandatory Cash Payments to the Borrower or any Subsidiary,
     the amount of such Mandatory Cash Payments that (on a pro forma basis)
     would have been so required to be paid for such four fiscal quarters,
     adjusted for withholding taxes (if any), plus the amount calculated under
     clause (y), if any, (y) requires the payment of any Contingent Cash
     Payments to the Borrower or any Subsidiary, the amount of such Contingent
     Cash Payments accepted by the Agent (as described in the definition of
     Contingent Cash Payments) that (on a pro forma basis) would have been paid
     for such four fiscal quarters, adjusted for withholding taxes (if any),
     plus the amount calculated under clause (x), if any, (z) does not require
     the payment of any Mandatory Cash Payments or any Contingent Cash Payments,
     zero TO

          (ii) the sum of (x) Senior Debt PLUS (y) debt to be assumed by
     the Borrower or any of its Subsidiaries pursuant to the Acquisition,
     MINUS (z) the cash and Marketable Securities acquired by the Borrower
     or any of its Subsidiaries in such Acquisition.

to be greater than or equal to .20 to 1.0.

     "CD INTEREST PERIOD" means, with respect to a Fixed CD Rate Advance, a
period of 30, 60, 90 or 180 days commencing on a Business Day selected by a
Borrowing Entity pursuant to this Agreement.  If such CD Interest Period would
end on a day which is not a Business Day, such CD Interest Period shall end on
the next succeeding Business Day.

     "CHANGE IN CONTROL" means any of the following events that occur after the
date of this Agreement:  (i) all or substantially all of the Borrower's assets
are sold as an entirety to any Person or related group of Persons; (ii) there
shall be consummated any consolidation or merger of the Borrower (A) in which
the Borrower is not the continuing or surviving corporation (other than a
consolidation or merger with a Wholly-Owned Subsidiary of the Borrower in which
all shares of Common Stock of the Borrower outstanding immediately prior to the
effectiveness thereof are changed into or exchanged for the same consideration)
or (B) pursuant to which the Common Stock of the Borrower is converted into
cash, securities or other property, in each case other than a consolidation or
merger of the Borrower in which the holders of the Common Stock of the Borrower
immediately prior to the consolidation or merger have, directly or indirectly,
at least a majority of the Common Stock of the continuing or surviving
corporation immediately after such consolidation or merger;  (iii) any Person,
or any Persons acting together which would constitute a "group" for purposes of
Section 13(d) of the Securities Exchange Act of 1934, as amended (the "Exchange
Act") (other than the Borrower, any Subsidiary, any employee stock purchase or
program, retirement plan or automatic dividend reinvestment plan or any
substantially similar plan of the Borrower or any Subsidiary or any Person
holding securities of the Borrower for or pursuant to the terms of any such
employee benefit plan), together with any Affiliates and Subsidiaries thereof,
shall beneficially own


                                     Page 5
<PAGE>

(as defined in Rule 13 d-3 of the Exchange Act) at least 35% of the total voting
power of all classes of capital stock of the Borrower entitled to vote generally
in the election of directors of the Borrower, PROVIDED that the failure of any
event to constitute a "Change in Control" for the purposes of SECTION 7.12 shall
not be deemed to waive or otherwise affect the application of any other
provision of this Agreement to such event or (iv) there shall be consummated any
transaction the result of which shall be that the Borrower or the Acquisition
Subsidiary shall fail to own 100% of the outstanding shares of Brenco.

     "CODE" means the Internal Revenue Code of 1986, as amended, reformed or
otherwise modified from time to time.

     "COMMERCIAL LETTER OF CREDIT" means a commercial or trade Letter of Credit
issued by an Issuing Bank pursuant to SECTION 3.1.

     "COMMITMENT" means, for each Lender, the obligation of such Lender to make
Loans and participate in Facility B Letters of Credit not exceeding in the
aggregate the sum of such Lender's Facility A Commitment and Facility B
Commitment.

     "CONTINGENT CASH PAYMENTS" means those cash payments required (upon the
occurrence of a contingency) to be paid to the Borrower or any Subsidiary
pursuant to the terms of an acquisition agreement (or other relevant document)
described in the definition of "Cash Flow Incurrence Test" and which are
accepted by the Agent as likely to be paid (because of the likely occurrence of
the applicable contingency), such payments to include, without limitation, those
required on account of royalty payments, license and technical transfer fees,
administrative reimbursements, dividends, interest, principal and other return
of capital payments which (in each case) are contingent.

     "CONTINGENT OBLIGATION" of a Person means (without duplication) any
agreement, undertaking or arrangement by which such Person assumes, guarantees,
endorses, contingently agrees to purchase or provide funds for the payment of,
or otherwise becomes or is contingently liable upon, the obligation or liability
of any other Person (including but not limited to Financial Guaranties), or
agrees to maintain the net worth or working capital or other financial condition
of any other Person, or otherwise assures any creditor of such other Person
against loss, including, without limitation, any comfort letter, operating
agreement, take-or-pay contract or Letter of Credit reimbursement obligation.
The amount of any Contingent Obligation that is not a Financial Guaranty of a
Person or a standby Letter of Credit reimbursement obligation shall, at any
date, be the amount of such obligation which is reasonably susceptible to
quantification as a matured obligation (taking into account the likelihood that
such Contingent Obligation will mature into an actual obligation).  The amount
of any Contingent Obligation that is a standby Letter of Credit reimbursement
obligation shall be the LC Contingent Reimbursement Value.  The amount of any
Financial Guaranty of a Person at any date shall be the maximum amount that may
become payable (conditionally or unconditionally) by such Person as of such date
thereunder.

     "CONVERSION/CONTINUATION NOTICE" is defined in SECTION 2.9.3.


                                     Page 6
<PAGE>

     "CONTROLLED GROUP" means all members of a controlled group of corporations
and all trades or businesses (whether or not incorporated) under common control
which, together with the Borrower or any of its Subsidiaries, are treated as a
single employer under Section 414 of the Code.

     "CORPORATE BASE RATE" means a rate per annum equal to the corporate base
rate of interest announced by First Chicago from time to time, changing when and
as said corporate base rate changes.

     "DEFAULT" means an event described in Article VII.

     "DESIGNATED PREPAYMENT" is defined in SECTION 2.7.4.

     "DOLLAR" or "$" means United States Dollars.

     "DOLLAR EQUIVALENT" of (i) any Advance (other than a Foreign Currency
Advance) as of any date, means the Dollar amount of such Advance outstanding (or
to be made) on such date, (ii) any Foreign Currency Advance as of any date,
means the amount of Dollars into which the amount of such Foreign Currency
Advance outstanding (or to be made) on such date may be converted at the spot
rate at which Dollars are offered to the Agent in London for the Foreign
Currency in which such Foreign Currency Advance is (or is to be) denominated in
an amount comparable to the amount of such Advance at approximately 11:00 a.m.
(London time) on the second Business Day prior to the date such Foreign Currency
Advance was initially (or is to be) made, (iii) any Facility B Letter of Credit
as of any date, means the Dollar stated amount of such Facility B Letter of
Credit undrawn on such date, and (iv) any Reimbursement Obligation as of any
date, means the Dollar amount of the then unreimbursed payments or disbursements
made by Lenders, the Issuing Banks and/or the Agent (without duplication) in
respect of draws under any Facility B Letter of Credit.

     "DOMESTIC BORROWING SUBSIDIARY" means any Domestic Subsidiary that is also
a Borrowing Subsidiary.

     "DOMESTIC SUBSIDIARY" means any Subsidiary which is incorporated or
organized under the laws of the United States of America, any state thereof or
the District of Columbia.

     "EARNINGS" means, (i) when used with respect to the Borrower, income from
operations on a consolidated basis for the Borrower and its Subsidiaries
excluding equity earnings in non-consolidated Subsidiaries and Affiliates plus
cash dividends from non-consolidated Subsidiaries and Affiliates, and (ii) when
used with respect to any other Person, income from operations on a consolidated
basis for such Person and its Subsidiaries excluding equity earnings in non-
consolidated Subsidiaries and Affiliates plus cash dividends from non-
consolidated Subsidiaries and Affiliates.

     "EBITA" means, for any period, the sum of Earnings before Net Interest,
income taxes and amortization expense for such period PLUS any non-cash charges
and expenses incurred during such period related to the disposition of
businesses or entire facilities or to the revaluation of intangibles MINUS any
cash payments made during such period with respect to any non-cash charges and
expenses related to the disposition of businesses or entire facilities
previously taken into account, all


                                     Page 7
<PAGE>

determined in accordance with Agreement Accounting Principles on a consolidated
basis for the Borrower and its Subsidiaries.

     "EBITDA" means (i) when used with respect to the Borrower, the sum of (a)
EBITA PLUS (b) depreciation, all determined in accordance with Agreement
Accounting Principles on a consolidated basis for the Borrower and its
Subsidiaries, and (ii) when used in connection with any Acquisition Target for
any period, (y) where the Acquisition is of voting securities or other ownership
interests in a corporation, partnership interest or joint venture, Earnings
before Net Interest, income taxes, depreciation expense and amortization expense
for such period, all determined in accordance with Agreement Accounting
Principles on a consolidated basis for the Target and its Subsidiaries, and (z)
where the Target consists of assets of a Person (including, without limitation,
a going business or division or one or more manufacturing lines) other than
voting securities or other ownership interests in another Person, the income
from operations before Net Interest, income taxes, depreciation expense and
amortization expense generated by the assets comprising the Target during such
period.

     "EFFECTIVE DATE" is defined in SECTION 4.1.

     "ELECTION TO PARTICIPATE" means a letter agreement, in the form of EXHIBIT
B attached hereto, pursuant to which a Subsidiary agrees to become a Borrowing
Subsidiary hereunder.

     "ERISA" means the Employee Retirement Income Security Act of l974, as
amended from time to time, and any rule or regulation issued thereunder.

     "EUROCURRENCY" means Dollars and, to the extent such currencies are freely
transferable and convertible into Dollars and are available in the London
interbank market, the lawful currencies of France, Germany, Italy, Japan,
Switzerland, Canada, the United Kingdom and any other country agreed to by the
Required Banks.

     "EUROCURRENCY ADVANCE" means an Advance denominated in a Eurocurrency which
bears interest at the Eurocurrency Rate, including, but not limited to,
Eurodollar Advances.

     "EUROCURRENCY BASE RATE" means either (i) with respect to any Eurocurrency
Advance for any specified Eurocurrency Interest Period, the rate of interest per
annum equal to the rate for (in the case of Eurodollar Advances) Dollar deposits
(and in the case of Advances in any other Eurocurrency, deposits in such
Eurocurrency) in the approximate amount of such Eurocurrency Advance with
maturities equal to such Eurocurrency Interest Period which appears on Telerate
Page 3750 (or, in the case of Advances in any other Eurocurrency, on the
appropriate Telerate Page for such Eurocurrency) or, if there is more than one
such rate for the applicable Eurocurrency, the average of such rates rounded to
the nearest 1/100 of 1%, as of 11 a.m. (London time) two Business Days prior to
the first day of such Eurocurrency Interest Period or (ii) if no such rate of
interest appears on Telerate Page 3750 (or, in the case of Advances in any other
Eurocurrency, on the appropriate Telerate Page for such Eurocurrency), for any
specified Eurocurrency Interest Period, the rate of interest per annum
determined by the Agent to be the rate at which deposits in the applicable
Eurocurrency are offered by First Chicago to first-class banks in the London
interbank market at approximately 11 a.m. (London time) two Business Days prior
to the first day of such Eurocurrency Interest Period for delivery on such day,
in the approximate amount of First Chicago's


                                     Page 8
<PAGE>

pro rata share of such Eurocurrency Advance and having a maturity equal to such
Eurocurrency Interest Period.  The term "Telerate Page 3750" means the display
designated as "Page 3750" on the Associated Press-Dow Jones Telerate Service (or
such other page as may replace Page 3750 on the Associated Press-Dow Jones
Telerate Service or such other service as may be nominated by the British
Bankers' Association as the information vendor for the purpose of displaying
British Bankers' Association interest rate settlement rates for Dollar
deposits).  Any Eurocurrency Rate determined on the basis of the rate displayed
on Telerate Page 3750 in accordance with the foregoing provisions of this
subparagraph shall be subject to corrections, if any, made in such rate and
displayed by the Associated Press-Dow Jones Telerate Service within one hour of
the time when such rate is first displayed by such service.

     "EUROCURRENCY INTEREST PERIOD" means, with respect to a Eurocurrency
Advance, a period of one, two, three or six months commencing on a Business Day
selected by the Borrowing Entity pursuant to this Agreement.  Such Eurocurrency
Interest Period shall end on (but exclude) the day which corresponds numerically
to such date one, two, three or six months thereafter; PROVIDED, HOWEVER, that
if there is no such numerically corresponding day in such next, second, third or
sixth succeeding month, such Eurocurrency Interest Period shall end on the last
Business Day of such next, second, third or sixth succeeding month; and PROVIDED
FURTHER, HOWEVER, that if a Eurocurrency Interest Period would otherwise end on
a day which is not a Business Day, such Eurocurrency Interest Period shall end
on the next succeeding Business Day; PROVIDED, HOWEVER, that if said next
succeeding Business Day falls in a new calendar month, such Eurocurrency
Interest Period shall end on the immediately preceding Business Day.

     "EUROCURRENCY LOAN" means a Loan denominated in a Eurocurrency which bears
interest at the Eurocurrency Rate, including, but not limited to, Eurodollar
Loans.

     "EUROCURRENCY RATE" means, with respect to any Eurocurrency Advance for any
specified Eurocurrency Interest Period, a rate per annum equal to the sum of (i)
the percentage indicated as the Applicable Margin for the Eurocurrency Rate PLUS
(ii) the quotient of (a) the Eurocurrency Base Rate applicable to such
Eurocurrency Advance and Eurocurrency Interest Period, divided by (b) either (1)
for any Eurodollar Advance, a number equal to one minus the Reserve Requirement
(expressed as a decimal) applicable to such Eurocurrency Advance and
Eurocurrency Interest Period or (2) for any other Eurocurrency Advance, the
number one  The Eurocurrency Rate shall be rounded to the next higher multiple
of 1/16 of 1% if the rate is not such a multiple.

     "EURODOLLAR ADVANCE" means an Advance denominated in Dollars which bears
interest at the Eurocurrency Rate.

     "EURODOLLAR LOAN" means a Loan denominated in Dollars which bears interest
at the Eurocurrency Rate.

     "EXCHANGE ACT" is defined in the definition of "Change of Control" in this
Article I.

     "EXCLUDED ASSET SALE" means [_________________________].  In no event shall
the aggregate value of all Excluded Asset Sales exceed  $46,000,000.


                                     Page 9
<PAGE>

     "EXCLUDED TAX" is defined in SECTION 2.20.1(a).

     "EXISTING LETTERS OF CREDIT" means the outstanding Letters of Credit listed
on SCHEDULE 6.

     "EXTENSION DATE" means (i) initially, July ______, 1998 and (ii)
thereafter, July __, 1999.

     "EXTENSION REQUEST" is defined in SECTION 2.19.

     "FACILITY A ADVANCE" means an advance consisting of Facility A Loans.

     "FACILITY A BORROWING DATE" means (i) when used with respect to Loans made
to fund the Offer to Purchase, the date of the purchase of shares pursuant to
the Offer to Purchase and (ii) when used with respect to Loans made to fund the
Merger, the date of the consummation of the Merger.

     "FACILITY A COMMITMENT" means, for each Lender, the obligation of such
Lender to make Facility A Loans not exceeding an amount equal to the product of
(i) the then existing Aggregate Facility A Commitment and (ii) the Percentage
applicable to such Lender.

     "FACILITY A LOAN" is defined in SECTION 2.1.1.

     "FACILITY A TERMINATION DATE" means July _______ 2002 or such earlier date
as the Aggregate Facility A Commitment may be terminated in accordance with this
Agreement.

     "FACILITY B ADVANCE" means an advance consisting of Facility B Loans.

     "FACILITY B COMMITMENT" means, for each Lender, the obligation of such
Lender to make Facility B Loans and to participate in Facility B Letters of
Credit not exceeding an amount equal to the product of (i) the then existing
Aggregate Facility B Commitment and (ii) the Percentage applicable to such
Lender.

     "FACILITY B LETTER OF CREDIT" means (a) the Existing Letters of Credit and
(b) a Commercial Letter of Credit or Standby Letter of Credit issued hereunder.

     "FACILITY B LETTER OF CREDIT FEE" is defined in SECTION 3.8.

     "FACILITY B LETTER OF CREDIT OBLIGATIONS" means, as at the time of
determination thereof, the sum of (a) the Reimbursement Obligations then
outstanding and (b) the aggregate then undrawn face amount of the then
outstanding Facility B Letters of Credit.

     "FACILITY B LOAN" is defined in SECTION 2.1.2.

     "FACILITY B TERMINATION DATE" means July __, 2002 or such (x) later date as
to which the Facility B Termination Date may be extended in accordance with
SECTION 2.19 or (y) earlier date as the Aggregate Facility B Commitment may be
terminated in accordance with this Agreement.


                                     Page 10
<PAGE>

     "FACILITY TERMINATION DATE" means the later to occur of the Facility A
Termination Date and the Facility B Termination Date.

     "FEDERAL FUNDS EFFECTIVE RATE" means, for any day, an interest rate per
annum equal to the weighted average of the rates on overnight Federal funds
transactions with members of the Federal Reserve System arranged by Federal
funds brokers on such day, as published for such day (or, if such day is not a
Business Day, for the immediately preceding Business Day) by the Federal Reserve
Bank of New York, or, if such rate is not so published for any day which is a
Business Day, the average of the quotations at approximately 10 a.m. (Chicago
time) on such day for such transactions received by the Agent from three Federal
funds brokers of recognized standing selected by the Agent.

     "FINANCIAL GUARANTIES" of a Person means (without duplication) any
agreement, undertaking or arrangement by which such Person assumes, guarantees,
endorses or contingently agrees to provide funds for the repayment of money
borrowed by or advanced to or for the account of another Person.  The amount of
any Financial Guaranty of a Person at any date shall be the maximum amount that
may become payable (conditionally or unconditionally) by such Person as of such
date thereunder.

     "FINANCIAL LETTER OF CREDIT" means any Standby Letter of Credit which
represents an irrevocable obligation to the beneficiary on the part of the
Issuing Bank (i) to repay money borrowed by or advanced to or for the account of
the account party or (ii) to make any payment on account of any indebtedness
undertaken by the account party, in the event the account party fails to fulfill
its obligation to the beneficiary.

     "FIRST CHICAGO" means The First National Bank of Chicago in its individual
capacity, and its successors.

     "FIXED CD BASE RATE" means, with respect to any Fixed CD Rate Advance for
any specified CD Interest Period, the per annum rate determined by the Agent to
be the arithmetic average of the prevailing bid rates quoted to the Agent at or
before 10 a.m. (Chicago time) on the first day of such CD Interest Period by
three New York or Chicago certificate of deposit dealers of recognized standing
selected by the Agent in its sole discretion for the purchase on such day at
face value of certificates of deposit of First Chicago in the approximate amount
of First Chicago's relevant Fixed CD Rate Loan and having a maturity equal to
such CD Interest Period.

     "FIXED CD RATE" means, with respect to any Fixed CD Rate Advance for any
specified CD Interest Period, a rate per annum equal to the sum of (i) the
quotient of (a) the Fixed CD Base Rate applicable to such Fixed CD Rate Advance
and CD Interest Period, divided by (b) one minus the Reserve Requirement
(expressed as a decimal) applicable to such Fixed CD Rate Advance and CD
Interest Period PLUS (ii) the Assessment Rate applicable to such CD Interest
Period, PLUS (iii)  the percentage indicated as the Applicable Margin for the
Fixed CD Rate.  The Fixed CD Rate shall be rounded to the next higher multiple
of 1/100 of 1% if the rate is not such a multiple.

     "FIXED CD RATE ADVANCE" means an Advance which bears interest at a Fixed CD
Rate.

     "FIXED CD RATE LOAN" means a Loan which bears interest at a Fixed CD Rate.


                                     Page 11
<PAGE>

     "FIXED RATE" means the Fixed CD Rate or the Eurocurrency Rate.

     "FIXED RATE ADVANCE" means an Advance which bears interest at a Fixed Rate.

     "FIXED RATE LOAN" means a Loan which bears interest at a Fixed Rate.

     "FOREIGN BORROWING SUBSIDIARY" means any Foreign Subsidiary that is also a
Borrowing Subsidiary.

     "FOREIGN CURRENCY" means any currency other than Dollars.

     "FOREIGN CURRENCY ADVANCE" means any Eurocurrency Advance in a Foreign
Currency.

     "FOREIGN CURRENCY LOAN" means any Eurocurrency Loan in a Foreign Currency.

     "FOREIGN SUBSIDIARY" means any Subsidiary that is not a Domestic
Subsidiary.

     "GOVERNMENTAL AGENCY" means any government (foreign or domestic) or any
state or other political subdivision thereof, or governmental body, agency,
authority, department or commission (including without limitation any taxing
authority or political subdivision) or instrumentality (including without
limitation any court or tribunal) exercising executive, legislative, judicial,
regulatory or administrative functions of or pertaining to government and any
corporation, partnership or other entity, directly or indirectly majority-owned
by or subject to the control of any of the foregoing.

     "GROSS NEGLIGENCE" means recklessness, the absence of the slightest care or
the complete disregard of consequences.  Gross Negligence does not mean the
absence of ordinary care or diligence, or an inadvertent act or inadvertent
failure to act.  If the term "gross negligence" is used with respect to the
Agent or any Lender or any indemnitee in any of the other Loan Documents, it
shall have the meaning set forth herein.

     "GUARANTORS" means all of the Borrower's Subsidiaries as of the Effective
Date (other than Foreign Subsidiaries) and any other New Subsidiaries (other
than Foreign Subsidiaries) which have satisfied the provisions of SECTION
6.16(b)(ii) hereof, and their respective successors and assigns.

     "GUARANTY" means that certain Guaranty dated as of July __, 1996 executed
by the Guarantors in favor of the Agent, for the ratable benefit of the Lenders,
as it may be amended, modified, supplemented and/or restated (including to add
new Guarantors), and as in effect from time to time.

     "INDEBTEDNESS" of a Person means (without duplication) such Person's (i)
obligations for borrowed money, (ii) obligations representing the deferred
purchase price of Property or services (other than accounts payable arising in
the ordinary course of such Person's business payable on terms customary in the
trade), PROVIDED that such deferral was initially for a period of one year or
longer, (iii) obligations, whether or not assumed, secured by Liens on property
now or hereafter


                                     Page 12
<PAGE>

owned or acquired by such Person, (iv) obligations which are evidenced by notes,
acceptances, or other instruments, (v) Capitalized Lease Obligations and (vi)
Contingent Obligations.

     "INTANGIBLE ASSETS" means, as of any specified date, the amount shown as
"Goodwill and other intangible assets, less accumulated amortization" (or any
successor line item) for the most recently ended fiscal quarter of the Borrower
for which financial statements were delivered under SECTION 6.1.

     "INTEREST COVERAGE RATIO" means, as of any fiscal quarter end, a ratio of
(i) EBITA for such fiscal quarter and the three immediately preceding fiscal
quarters to (ii) Net Interest for such fiscal quarter and the three immediately
preceding fiscal quarters, all determined in accordance with Agreement
Accounting Principles on a consolidated basis for the Borrower and its
Subsidiaries.

     "INTEREST PERIOD" means a CD Interest Period or a Eurocurrency Interest
Period.

     "INVESTMENT" of a Person means any loan, advance (other than commissions,
travel and other advances to officers, directors and employees made in the
ordinary course of business or in connection with compensatory plan
arrangements), extension of credit (other than accounts receivable arising in
the ordinary course of business), deposit account or contribution of capital by
such Person to any other Person or any investment in, or purchase or other
acquisition of, the stock, partnership interests, notes, debentures or other
securities of any other Person made by such Person.

     "ISSUANCE DATE" is defined in SECTION 3.4(a).

     "ISSUANCE NOTICE" is defined in SECTION 3.4(c).

     "ISSUING BANK" is defined in SECTION 3.1.

     "JUDGMENT CURRENCY" is defined in SECTION 2.12.2.

     "LC CONTINGENT REIMBURSEMENT VALUE" means, when used in the definition of
"Contingent Obligation" herein, (i) for standby Letters of Credit with respect
to which the Borrower has shown or will show, on its consolidated financial
statements, a charge against Net Income and has accrued or will accrue a
corresponding liability relating to the partial or total occurrence of the
contingency against which the Letter of Credit is issued, ZERO, (ii) for standby
Letters of Credit issued in support of Indebtedness reflected on the
consolidated financial statements of the Borrower, ZERO and (iii) for standby
Letters of Credit issued in support of Indebtedness not reflected on the
consolidated financial statements of the Borrower, THE FACE AMOUNT OF SUCH
LETTER OF CREDIT.

     "LENDERS" means the lending institutions listed on the signature pages of
this Agreement and their respective successors and assigns.

     "LENDING INSTALLATION" means, with respect to a Lender or the Agent, any
office, branch, subsidiary or affiliate of such Lender or the Agent.


                                     Page 13
<PAGE>

     "LETTER OF CREDIT" of a Person means a letter of credit or similar
instrument which is issued upon the application of such Person or upon which
such Person is an account party or a co-obligor.

     "LETTER OF CREDIT COLLATERAL ACCOUNT" is defined in SECTION 3.9.

     "LETTER OF CREDIT REQUEST" is defined in SECTION 3.4(a).

     "LEVEL I STATUS" is defined in SECTION 2.5.

     "LEVEL II STATUS" is defined in SECTION 2.5.

     "LEVEL III STATUS" is defined in SECTION 2.5.

     "LEVEL IV STATUS" is defined in SECTION 2.5.

     "LEVEL V STATUS" is defined in SECTION 2.5.

     "LEVEL VI STATUS" is defined in SECTION 2.5.

     "LEVERAGE RATIO" means a ratio of (i) Indebtedness of the Borrower and its
consolidated Subsidiaries to (ii) EBITDA of the Borrower and its consolidated
Subsidiaries.

     "LIEN" means any lien (statutory or other), mortgage, pledge,
hypothecation, assignment as security, deposit arrangement for security,
encumbrance or similar preference, priority or other security agreement or
arrangement of any kind or nature whatsoever (including, without limitation, the
interest of a vendor or lessor under any conditional sale, Capitalized Lease or
other title retention agreement).

     "LOAN" means, (i) with respect to a Lender, such Lender's portion of any
Advance made pursuant to SECTION 2.1 and (ii) collectively, with respect to all
Lenders, all Facility A Loans and Facility B Loans.

     "LOAN DOCUMENTS" means this Agreement, the Notes, the Guaranty and, if any
pledge agreement is ever delivered hereunder pursuant to SECTION 6.16(a)(iii)
hereof, such pledge agreement.

     "MANDATORY CASH PAYMENTS" means those cash payments required (without the
occurrence of any contingency) to be paid to the Borrower or any Subsidiary
pursuant to the terms of an acquisition agreement (or other relevant document)
described in the definition of "Cash Flow Incurrence Test", such payments to
include, without limitation, those required on account of royalty payments,
license and technical transfer fees, administrative reimbursements, dividends,
interest, principal and other return of capital payments which (in each case)
are mandatory.

     "MARKETABLE SECURITIES" means any of the following:  (i) obligations of, or
fully guaranteed by, the United States of America or any agency or
instrumentality thereof maturing not more than 12 months after the date of
acquisition; (ii) Commercial paper rated A-l or better by S&P or P-l or better
by Moody's; (iii) Demand deposit accounts maintained in the ordinary course of
business; (iv)


                                     Page 14
<PAGE>

Certificates of deposit and bankers' acceptances issued by and time deposits
with commercial banks (whether domestic or foreign) having capital and surplus
in excess of $100,000,000 or with any Lender; and (v) obligations of any United
States state or any political subdivision of such a state, or any agency or
instrumentality of such a state or political subdivision, maturing not more than
12 months after acquisition that are rated A or better by S&P or A or better by
Moody's.

     "MATERIAL ADVERSE EFFECT" means a material adverse effect on (i) the
business, Property, condition (financial or otherwise), results of operations,
or prospects of the Borrower and its Subsidiaries taken as a whole, (ii) the
ability of the Borrower to perform its obligations under the Loan Documents, or
(iii) the validity or enforceability of any of the Loan Documents or the rights
or remedies of the Agent or the Lenders thereunder.

     "MERGER" means the merger of the Acquisition Subsidiary with and into
Brenco pursuant to Article II of the Acquisition Agreement.

     ["MONY LETTERS OF CREDIT" means those certain Facility B Letters of Credit
to be issued by First Chicago, as an Issuing Bank, which Facility B Letters of
Credit shall be (a) Standby Letters of Credit, each with a termination date on
or before [___________________], (b) issued as of the date of this Agreement
notwithstanding the procedure contained in SECTION 3.4(a), and (c) issued for
the benefit of MONY Life Insurance Company of America, The Mutual Life Insurance
Company of New York and Mutual Benefit Life Insurance Company in Rehabilitation
(or their respective successors and assigns) as credit support for the
Borrower's Indebtedness to such entities referred to on SCHEDULE 5 hereto.]

     "MOODY'S" means Moody's Investors Service, Inc.

     "MULTIEMPLOYER PLAN" means a Plan maintained pursuant to a collective
bargaining agreement or any other arrangement to which the Borrower or any
member of the Controlled Group is a party to which more than one employer is
obligated to make contributions.

     "NET ASSETS" means total assets MINUS current liabilities, all determined
on a consolidated basis for the Borrower and its Subsidiaries.

     "NET CASH PROCEEDS" means, with respect to any Asset Sale of any Person, 
(a) cash (freely convertible into U.S. Dollars) received by such Person or 
any Subsidiary of such Person from such Asset Sale (including cash received 
as consideration for the assumption or incurrence of liabilities incurred in 
connection with or in anticipation of such Asset Sale), after (i) provision 
for all income or other taxes measured by or resulting from such Asset Sale, 
(ii) payment of all brokerage commissions and other fees and expenses related 
to such Asset Sale, (iii) all amounts (in Dollar Equivalents) used to repay 
Indebtedness secured by a Lien on any asset disposed of in such Asset Sale or 
which is or may be required (by the express terms of the instrument governing 
such Indebtedness) to be repaid in connection with such Asset Sale (including 
payments made to obtain or avoid the need for the consent of any holder of 
such Indebtedness), and (iv) deduction of appropriate amounts (in Dollar 
Equivalents) to be provided by such Person or a Subsidiary of such Personas a 
reserve, in accordance with Agreement Accounting Principles, against any 
liabilities associated with the assets sold or disposed of in such Asset Sale 
and retained by such Person or a Subsidiary of such Person 

                                     Page 15
<PAGE>

after such Asset Sale, including, without limitation, pension and other 
post-employment benefit liabilities and liabilities related to environmental 
matters or against any indemnification obligations associated with the assets 
sold or disposed of in such Asset Sale; and (b) cash payments in respect of 
any Indebtedness, capital stock or other consideration received by such 
Person or any Subsidiary of such Person from such Asset Sale upon receipt of 
such cash payments by such Person or such Subsidiary.  All calculations of 
Net Cash Proceeds shall be in Dollar Equivalents.

     "NET INCOME" means, for any period, the net income (or loss) of the
Borrower and its Subsidiaries on a consolidated basis for such period taken as a
single accounting period determined in conformity with Agreement Accounting
Principles (PLUS any non-cash charges and expenses incurred during such period
related to the disposition of businesses or entire facilities or to the
revaluation of intangibles and MINUS any cash payments made during such period
with respect to any non-cash charges and expenses related to the disposition of
businesses or entire facilities previously taken into account); PROVIDED,
HOWEVER, that to the extent reported as a separate item on the Borrower's
financial statements delivered pursuant to SECTION 6.1, there shall be excluded
(i) the income (or loss) of any non-Subsidiary Affiliate of the Borrower or
other Person (other than a Subsidiary of the Borrower) in which any Person
(other than the Borrower or any of its Subsidiaries) has a joint interest,
except to the extent of the amount of dividends, distributions or other cash
amounts actually paid to the Borrower, or any of its Subsidiaries by such
Affiliate or other Person during such period and (ii) the income (or loss) of
any Person accrued prior to the date that such Person becomes a Subsidiary of
the Borrower or is merged into or consolidated with the Borrower or any of its
Subsidiaries or that Person's assets are acquired by the Borrower or any of its
Subsidiaries.

     "NET INTEREST" means, for any period, total interest expense MINUS total
interest income.

     "NET WORTH" means the aggregate amount of common shareholders' equity as
determined from a consolidated balance sheet of the Borrower and its
Subsidiaries, prepared in accordance with Agreement Accounting Principles.

     "NEW SUBSIDIARY" is defined in SECTION 6.16(b).

     "NOTES" means, collectively, the Borrower Notes and the Borrowing
Subsidiary Notes.

     "NOTICE OF ASSIGNMENT" is defined in SECTION 12.3.2.

     "OBLIGATIONS" means all unpaid principal of and accrued and unpaid interest
on the Notes, the Facility B Letter of Credit Obligations and all other
liabilities (if any), whether actual or contingent, of the Borrowing Entities
with respect to Facility B Letters of Credit, all accrued and unpaid fees and
all expenses, reimbursements, indemnities and other obligations of the Borrowing
Entities to the Lenders or to any Lender, the Agent or any indemnified party
hereunder arising under the Loan Documents, including the Borrowing Subsidiary
Obligations.

     "OFFER TO PURCHASE" shall mean the Acquisition Subsidiary's Offer to
Purchase for cash any and all outstanding shares of common stock of Brenco,
dated [_____________].


                                     Page 16
<PAGE>

     "OPERATING CASH FLOW" for any period means, for the Borrower and its
Subsidiaries on a consolidated basis, without duplication, the sum of (i) Net
Income for such period, (ii) depreciation expense for such period, (iii)
amortization expense for such period and (iv) any non-cash losses (MINUS any
non-cash gains) arising outside of the ordinary course of business which have
been included in the determination of Net Income for such period (to the extent
reported as a separate item on the Borrower's financial statements), all
calculated in accordance with Agreement Accounting Principles.

     "PARTICIPANTS" is defined in SECTION 12.2.1.

     "PAYMENT DATE" means the last day of each March, June, September and
December.

     "PBGC" means the Pension Benefit Guaranty Corporation, or any successor
thereto.

     "PERCENTAGE" means, for each Lender the percentage set forth opposite its
name on SCHEDULE 1 attached hereto, as such percentage (and such schedule) may
be modified from time to time pursuant to the terms hereof, including but not
limited to the provisions of SECTION 12.3.2.

     "PERFORMANCE LETTER OF CREDIT" means any Standby Letter of Credit which
represents an irrevocable obligation to the beneficiary on the part of the
Issuing Bank to make payment on account of any default by the account party in
the performance of a nonfinancial or commercial obligation.

     "PERMITTED ACQUISITION" means an Acquisition (other than in connection with
the Offer to Purchase): (i) made at a time when no Default or Unmatured Default
exists or would exist after giving effect to such Acquisition, (ii) consummated
on a non-hostile basis and for which the board of directors or other governing
body of such Person being acquired has approved the terms of such Acquisition
(if such Acquisition is a tender offer for the securities of a Person that is
required to file periodic reports under the Exchange Act, or if by the terms of
such Acquisition such board or other governing body approval is required) or for
which (in any other case) the board of directors or other governing body of the
Person owning the stock or assets being acquired (as the case may be) has
approved the terms of such Acquisition, (iii) for which the Borrower has
demonstrated to the Lenders that, after giving effect to such Acquisition, the
Borrower can satisfy the Cash Flow Incurrence Test (PROVIDED that this test need
only be satisfied if the purchase price of the subject Acquisition, excluding
assumed liabilities, either (a) equals or exceeds $10,000,000 or (b) when added
to the purchase price of each other Acquisition, the purchase price of which
(excluding any liabilities assumed) was less than $10,000,000, made during the
same fiscal year, equals or exceeds $10,000,000) and (iv) for which the Borrower
has first provided the Lenders with (a) financial information with respect to
the Target of such Acquisition (including historical financial statements, to
the extent available) and (b) a description of the Target of such Acquisition.

     "PERMITTED INDEBTEDNESS" means [_________________].

     "PERSON" means any natural person, corporation, firm, joint venture,
partnership, association, enterprise, trust or other entity or organization, or
any Governmental Agency.


                                     Page 17
<PAGE>

     "PLAN" means an employee pension benefit plan which is covered by Title IV
of ERISA or subject to the minimum funding standards under Section 412 of the
Code as to which the Borrower or any member of the Controlled Group may have any
liability.

     "PROPERTY" of a Person means any and all property and assets, whether real,
personal, tangible, intangible, or mixed, of such Person.

     "PURCHASERS" is defined in SECTION 12.3.1.

     "REGULATION D" means Regulation D of the Board of Governors of the Federal
Reserve System as from time to time in effect and any successor thereto or other
regulation or official interpretation of said Board of Governors relating to
reserve requirements applicable to member banks of the Federal Reserve System.

     "REGULATION G" means Regulation G of the Board of Governors of the Federal
Reserve System as from time to time in effect and any successor or other
regulation or official interpretation of said Board of Governors relating to the
extension of credit by nonbank, nonbroker lenders for the purpose of purchasing
or carrying margin stock (as defined therein).

     "REGULATION T" means Regulation T of the Board of Governors of the Federal
Reserve System as from time to time in effect and any successor or other
regulation or official interpretation of said Board of Governors relating to the
extension of credit by and to brokers and dealers of Securities for the purpose
of purchasing or carrying margin stock (as defined therein).

     "REGULATION U" means Regulation U of the Board of Governors of the Federal
Reserve System as from time to time in effect and any successor or other
regulation or official interpretation of said Board of Governors relating to the
extension of credit by banks for the purpose of purchasing or carrying margin
stocks applicable to member banks of the Federal Reserve System.

     "REGULATION X" means Regulation X of the Board of Governors of the Federal
Reserve System as from time to time in effect and any successor or other
regulation or official interpretation of said Board of Governors relating to the
obtaining of credit for the purpose of purchasing or carrying margin stock from
(among others) member banks of the Federal Reserve System.

     "REIMBURSEMENT OBLIGATIONS" means, at any time, the aggregate (without
duplication) of the Obligations of the Borrowing Entities to the Lenders, the
Issuing Banks and/or the Agent in respect of all unreimbursed payments or
disbursements made by the Lenders, the Issuing Banks and/or the Agent under or
in respect of draws made under the Facility B Letters of Credit.

     "RENTALS" of a Person means the aggregate fixed amounts payable by such
Person under any lease of Property having an original term (including any
required renewals or any renewals at the option of the lessor or lessee) of one
year or more, but does not include any amounts payable under Capitalized Leases
of such Person.

     "REPORTABLE EVENT" means a reportable event as defined in Section 4043 of
ERISA and the regulations issued under such section, with respect to a Plan,
excluding, however, such events as to


                                     Page 18
<PAGE>

which the PBGC by regulation waived the requirement of Section 4043(a) of ERISA
that it be notified within 30 days of the occurrence of such event, provided,
however, that a failure to meet the minimum funding standard of Section 412 of
the Code and of Section 302 of ERISA shall be a Reportable Event regardless of
the issuance of any such waiver of the notice requirement in accordance with
either Section 4043(a) of ERISA or Section 412(d) of the Code.

     "REQUIRED LENDERS" means Lenders in the aggregate having at least 66 2/3%
of the Aggregate Commitment or, if the Aggregate Commitment has been terminated,
Lenders in the aggregate holding at least 66 2/3% of the sum of (i) the Dollar
Equivalent of the aggregate unpaid principal amount of the outstanding Advances
PLUS (ii) the Facility B Letter of Credit Obligations.

     "RESERVE REQUIREMENT" means, with respect to any Fixed Rate Advance for any
Interest Period, the maximum aggregate reserve requirement (including all basic,
supplemental, marginal and other reserves) which is imposed under Regulation D
on new non-personal time deposits of $100,000 or more with a maturity equal to
that of such Fixed CD Rate Advance for such CD Interest Period (in the case of
Fixed CD Rate Advances) or on "Eurocurrency liabilities" with a maturity equal
to that of such Eurodollar Advance for such Eurocurrency Interest Period (in the
case of Eurodollar Advances).

     "S&P" means Standard and Poor's Corporation.

     "SECTION" means a numbered section of this Agreement, unless another
document is specifically referenced.

     "SENIOR DEBT" means total Indebtedness, other than Subordinated
Indebtedness, MINUS cash and Marketable Securities of the Borrower in excess of
$1,000,000, all determined for the Borrower and its Subsidiaries on a
consolidated basis (without duplication).

     "SINGLE EMPLOYER PLAN" means a Plan maintained by the Borrower or any
member of the Controlled Group for employees of the Borrower or any member of
the Controlled Group.

     "SPECIFIED CURRENCY" is defined in SECTION 2.12.2.

     "SPECIFIED PLACE" is defined in SECTION 2.12.2.

     "STANDBY LETTER OF CREDIT" means an irrevocable standby Letter of Credit
issued by an Issuing Bank pursuant to SECTION 3.1, that is either a Financial
Letter of Credit or a Performance Letter of Credit.

     "STATUS" means, at any date of determination thereof, whichever of Level I
Status, Level II Status, Level III Status, Level IV Status, Level V Status or
Level VI Status exists at such date.

     "SUBJECT COUNTRY" is defined in SECTION 5A.4.

     "SUBORDINATED DEBT" means the Borrower's $69,000,000 original principal
amount Convertible Subordinated Debentures due 2003, issued pursuant to that
certain Indenture dated May 27, 1993, between the Borrower and Harris Trust and
Savings Bank, as Trustee.


                                     Page 19
<PAGE>

     "SUBORDINATED INDEBTEDNESS" of a Person means any Indebtedness of such
Person the payment of which is subordinated to payment of the Obligations to the
written satisfaction of the Required Lenders.  In the case of the Borrower, such
Subordinated Indebtedness shall include, but shall not be limited to, the
Subordinated Debt.

     "SUBSIDIARY" of a Person means (i) any corporation more than 50% of the
outstanding securities having ordinary voting power of which shall at the time
be owned or controlled, directly or indirectly, by such Person or by one or more
of its Subsidiaries or by such Person and one or more of its Subsidiaries, or
(ii) any partnership, association, limited liability company, joint venture or
similar business organization more than 50% of the ownership interests having
ordinary voting power of which shall at the time be so owned or controlled.
Unless otherwise expressly provided, all references herein to a "Subsidiary"
shall mean a Subsidiary of the Borrower.

     "SUBSTANTIAL PORTION" means, with respect to the Property of the Borrower
and its Subsidiaries, Property which (i) represents more than 10% of the
consolidated assets of the Borrower and its Subsidiaries as would be shown in
the consolidated financial statements of the Borrower and its Subsidiaries as at
the beginning of the twelve-month period ending with the month in which such
determination is made, or (ii) is responsible for more than 10% of the
consolidated net sales or of the consolidated net income of the Borrower and its
Subsidiaries as reflected in the financial statements referred to in clause (i)
above.

     "TARGET" means, (i) when used with respect to (x) an Acquisition of
securities of a corporation which have ordinary voting power for the election of
directors (other than securities having such power only by reason of the
happening of a contingency) or (y) ownership interests in any partnership or
joint venture, such corporation, partnership or joint venture, and (ii) when
used with respect to an Acquisition of any assets other than those described in
clause (i), the assets being so acquired.

     "TAXES" is defined in SECTION 2.20.1.

     "TRANSFEREE" is defined in SECTION 12.4.

     "TYPE" means, with respect to any Advance, its nature as a Alternate Base
Rate Advance, Fixed CD Rate Advance, Eurodollar Advance or other Eurocurrency
Advance.

     "UNFUNDED LIABILITIES" means the amount (if any) by which the present value
of all vested nonforfeitable benefits under all Single Employer Plans exceeds
the fair market value of all such Plan assets allocable to such benefits, all
determined as of the then most recent valuation date for such Plans.

     "UNMATURED DEFAULT" means an event which but for the lapse of time or the
giving of notice, or both, would constitute a Default.

     "WHOLLY-OWNED SUBSIDIARY" of a Person means (i) any Subsidiary all of the
outstanding voting securities of which shall at the time be owned, directly or
indirectly, by such Person or one or more Wholly-Owned Subsidiaries of such
Person, or by such Person and one or more Wholly-Owned


                                     Page 20
<PAGE>

Subsidiaries of such Person, or (ii) any partnership, association, joint venture
or similar business organization 100% of the ownership interests having ordinary
voting power of which shall at the time be so owned.

     The foregoing definitions shall be equally applicable to both the singular
and plural forms of the defined terms.

     All references to the Subsidiaries of the Borrower in the Representations,
Warranties and Covenants contained herein shall include Brenco.


                                   ARTICLE II

                                   THE CREDITS


      2.1.     COMMITMENT.  From and including the date of this Agreement and
prior to the Facility Termination Date, each Lender severally agrees, on the
terms and conditions set forth in this Agreement, to make Loans to any of the
Borrowing Entities from time to time in amounts such that the Dollar Equivalent
of all Advances (as of the respective dates of determination of such Dollar
Equivalent amounts) does not exceed in the aggregate at any one time outstanding
(after giving effect to the intended use of proceeds of any Advance used to
repay any outstanding Reimbursement Obligations or previously-made Advances) the
amount of such Lender's Percentage of the Aggregate Available Commitment (except
to the extent such excess results from currency fluctuations as permitted under
SECTIONS 2.7.2 and 2.9.3).  The Facility A Commitments to lend hereunder shall
expire on the Facility A Termination Date.  The Facility B Commitments to lend
hereunder shall expire on the Facility B Termination Date.  Each Loan made
pursuant to this SECTION 2.1 shall be either a Facility A Loan or a Facility B
Loan.  Each Advance made pursuant to this SECTION 2.1 shall be either a Facility
A Advance or a Facility B Advance.

          2.1.1.  FACILITY A LOANS.  (a) AMOUNT OF FACILITY A LOANS.
     Subject to the terms and conditions set forth in this Agreement, each
     Lender severally and not jointly agrees to make on each Facility A
     Borrowing Date, a term loan, available in a single draw in dollars, to
     the Acquisition Subsidiary (each individually, a "Facility A Loan"
     and, collectively, the "Facility A Loans").  The aggregate amount of
     the term loans made pursuant to this SECTION 2.1.1(a) by any Lender
     shall not exceed such Lender's Facility A Commitment.

          (b)  BORROWING NOTICE.  The Acquisition Subsidiary shall deliver to
     the Agent a Borrowing Notice, signed by it, on the Facility A Borrowing
     Date.  Such Borrowing Notice shall specify instructions for the
     disbursement of the proceeds of the Facility A Loans.  The Facility A Loans
     shall initially be Alternate Base Rate Loans and thereafter may be
     continued as Alternate Base Rate Loans or converted into Fixed Rate Loans
     in the manner provided in SECTION 2.9 and subject to the other conditions
     and limitations therein set forth and set forth in this Article II.  Any
     Borrowing Notice given pursuant to this SECTION 2.1.1(b) shall be
     irrevocable.


                                     Page 21
<PAGE>

          (c)  MAKING OF FACILITY A LOANS.  Promptly after receipt of the
     Borrowing Notice under SECTION 2.1.1(b) in respect of the Facility A Loans,
     the Agent shall notify each Lender by telex or telecopy, or other similar
     form of transmission, of the proposed Advance.  Each Lender shall deposit
     an amount equal to its Facility A Loan with the Agent at its office in
     Chicago, Illinois, in immediately available funds, on the Facility A
     Borrowing Date specified in the Borrowing Notice.  Subject to the
     fulfillment of the conditions precedent set forth in ARTICLE IV,  the Agent
     shall make the proceeds of such amounts received by it available to the
     Acquisition Subsidiary at the Agent's office in Chicago, Illinois on the
     applicable Facility A Borrowing Date and shall disburse such proceeds in
     accordance with the Acquisition Subsidiary's  disbursement instructions set
     forth in such Borrowing Notice.

          (d)  REPAYMENT OF THE FACILITY A LOANS.  (i) The Facility A Loans
     shall be repaid in twenty-five (25) consecutive installments, the first
     twenty-four (24) of which shall be payable quarterly on the last day of
     each calendar quarter commencing September 30, 1996 and continuing
     thereafter to and including June 30, 2002 and the final installment shall
     be payable on the Facility A Termination Date, and the Facility A Loans
     shall be permanently reduced by the amount of each installment on the date
     payment thereof is required to be made hereunder.  The installments shall
     be in the aggregate amounts set forth below:




          INSTALLMENT DATE              INSTALLMENT AMOUNT
          ----------------              ------------------

          September 30, 1996
          December 31, 1996

          March 31, 1997
          June 30, 1997
          September 30, 1997
          December 31, 1997

          March 31, 1998
          June 30, 1998
          September 30, 1998
          December 31, 1998

          March 31, 1999
          June 30, 1999
          September 30, 1999
          December 31, 1999

          March 31, 2000
          June 30, 2000
          September 30, 2000


                                     Page 22
<PAGE>

          December 31, 2000

          March 31, 2001
          June 30, 2001
          September 30, 2001
          December 31, 2001

          March 31, 2002
          June 30, 2002
          Facility A Termination Date

Notwithstanding the foregoing, the final installment payable on the Facility A
Termination Date shall be in the amount of the then outstanding principal
balance of the Facility A Loans.  No installment of any Facility A Loan shall be
reborrowed once repaid.

               (ii)  In addition to the scheduled payments on the Facility A
Loans, the Borrower (a) may make the voluntary prepayments described in SECTION
2.7.1 for credit against the scheduled payments on the Facility A Loans pursuant
to SECTION 2.7 and (b) shall make the mandatory prepayments prescribed in
SECTION 2.7.4, for credit against such scheduled payments on the Facility A
Loans pursuant to SECTION 2.7.

          2.1.2.  FACILITY B LOANS.  (a) From and including the date of this
     Agreement and prior to the Facility B Termination Date, each Lender
     severally agrees, on the terms and conditions set forth in this Agreement
     (including, without limitation, the terms and conditions of SECTION 2.6 and
     SECTION 8.1 relating to the reduction, suspension or termination of the
     Aggregate Facility B Commitment), to make revolving loans (each
     individually, a "Facility B Loan" and, collectively, the "Facility B
     Loans") to any Borrowing Entity from time to time provided no such Facility
     B Loans shall be required if after making any such Facility B Loan the sum
     of (i) the Dollar Equivalent of the aggregate unpaid principal balance of
     the Facility B Advances attributable to such Lender then outstanding PLUS
     (ii) the Facility B Letter of Credit Obligations attributable to such
     Lender then outstanding would exceed such Lender's Facility B Commitment.
     Subject to the terms of this Agreement (including, without limitation, the
     terms and conditions of SECTION 2.5 and 8.1 relating to the reduction,
     suspension or termination of the Facility Commitment), a Borrowing Entity
     may borrow, repay and reborrow Facility B Loans at any time prior to the
     Facility B Termination Date.  Unless earlier terminated in accordance with
     the terms and conditions of this Agreement, the Facility B Commitments of
     the Lenders to lend hereunder shall expire on the Facility B Termination
     Date.  All outstanding Facility B Loans shall be paid in full by the
     applicable Borrowing Entity on the Facility B Termination Date.

               (b)  BORROWING NOTICE.  When a Borrowing Entity desires to borrow
     under this SECTION 2.1.2, it shall deliver to the Agent a Borrowing Notice,
     signed by it, specifying that the Borrower is requesting a Facility B Loan
     pursuant to this SECTION 2.1.2.  Any Borrowing Notice given pursuant to
     this SECTION 2.1.2(b) shall be irrevocable.

      2.2.     RATABLE LOANS; TYPES OF ADVANCES.  Each Advance hereunder shall
consist of Loans made from the several Lenders ratably in proportion to the
ratio that their respective Commitments


                                     Page 23
<PAGE>

bear to the Aggregate Commitment.  The Advances may be Alternate Base Rate
Advances, Fixed CD Rate Advances or Eurocurrency Advances, or a combination
thereof, selected by the relevant Borrowing Entity in accordance with SECTIONS
2.8 and 2.9; PROVIDED, HOWEVER, that (i) Eurocurrency Advances denominated in a
Foreign Currency may be outstanding in not more than six Foreign Currencies at
any one time; (ii) there shall not be more than ten Fixed Rate Advances
outstanding at any one time; and (iii) notwithstanding anything herein to the
contrary, without the Agent's consent, Borrower may not select a Fixed Rate with
an Interest Period greater than one month for any Advance made prior to three
months after the date hereof.

      2.3.     MINIMUM AMOUNT OF EACH ADVANCE.  Each Fixed Rate Advance shall be
in an amount having a Dollar Equivalent of not less than $1,000,000 (and in
multiples of $500,000 if in excess thereof), and each Alternate Base Rate
Advance shall be in the minimum amount of $200,000 (and in multiples of $100,000
if in excess thereof); PROVIDED, HOWEVER, that any Alternate Base Rate Advance
may be in the amount of the unused Aggregate Available Commitment.

      2.4.     FEES.  In addition to the Facility B Letter of Credit Fees and
issuance fees identified in SECTION 3.8, the Borrower agrees to pay the
following fees:

          2.4.1.  COMMITMENT FEE.  The Borrower agrees to pay to the Agent
     for the ratable account of each Lender, for the period from the date
     hereof to and including the Facility B Termination Date, a commitment
     fee at a rate per annum equal to the annual percentage rate indicated
     as the Applicable Margin for the commitment fee on the daily
     unborrowed portion of such Lender's Percentage of the Facility B
     Commitment, the accrued but unpaid portion of which shall be payable
     on each Payment Date hereafter and on the Facility B Termination Date.
     All accrued commitment fees shall be payable on the effective date of
     any termination of the obligations of the Lenders to make Loans and
     issue or participate in Facility B Letters of Credit hereunder, and
     commitment fees shall cease to accrue thereafter.  For purposes of
     calculating the commitment fee hereunder, the principal amount of each
     Foreign Currency Advance shall be the Dollar Equivalent of such
     Foreign Currency Advance as determined under clause (ii) of the
     definition herein of "Dollar Equivalent".

          2.4.2.  UPFRONT FEE.  The Borrower agrees to pay to the Agent for
     the account of the Lenders (the amount payable to each Lender to be as
     agreed between the Agent and any Lender), on the date that this
     Agreement is executed, an upfront fee in an amount set forth in that
     certain fee letter between the Borrower and the Agent dated March 20,
     1996, as it may be amended from time to time (the "Fee Letter").

          2.4.3.  AGENT FEES.  The Borrower agrees to pay certain fees to
     the Agent, for its sole account, on the dates and in the amounts set
     forth in the Fee Letter.

     2.5  APPLICABLE MARGIN.  The Applicable Margin set forth below, with
respect to each Advance and for commitment fees and Facility B Letter of Credit
Fees payable hereunder, shall be subject to adjustment (upwards or downwards, as
appropriate) based on the Borrower's Status as at


                                     Page 24
<PAGE>

the end of each fiscal quarter in accordance with the table set forth below.
The Borrower's Status as at the last day of each fiscal quarter shall be
determined from the annual or quarterly financial statements of the Borrower
which first included such fiscal quarter delivered by the Borrower to the
Lenders pursuant to SECTION 6.1.  The Borrower's Status on the Effective Date
shall be based upon the Compliance Certificate delivered pursuant to SECTION
4.1.  The adjustment, if any, to the Applicable Margin shall be effective five
days after the Agent has received such annual or quarterly financial statements,
as the case may be.  In the event that the Borrower shall at any time fail to
furnish to the Lenders such financial statements within the time limitations
specified by SECTION 6.1, then the Borrower's Status shall be Level I Status
from the date of such failure until the fifth day after such financial
statements are so delivered.

<TABLE>
<CAPTION>

APPLICABLE MARGIN                  LEVEL I        LEVEL II       LEVEL III      LEVEL IV       LEVEL V        LEVEL VI
                                   STATUS         STATUS         STATUS         STATUS         STATUS         STATUS
- ----------------------------------------------------------------------------------------------------------------------
<S>                                <C>            <C>            <C>            <C>            <C>            <C>

ALTERNATE BASE RATE                 .25%          0%             0%             0%             0%             0%
                              
EUROCURRENCY RATE                  1.25%          1.00%          0.875%         0.75%          0.625%         0.50%
                              
FIXED CD RATE                      1.375%         1.125%         1.00%          0.875%         0.75%          0.625%
                              
COMMITMENT FEE                     0.375%         0.25%          0.25%          0.20%          0.20%          0.175%
                              
STANDBY LETTER OF CREDIT FEE  
(FINANCIAL)                        1.25%          1.00%          0.875%         0.75%          0.625%         0.50%
                              
STANDBY LETTER OF CREDIT FEE  
(PERFORMANCE)                      0.50%          0.50%          0.50%          0.375%         0.375%         0.375%

</TABLE>


For purposes of this Agreement, the Borrower's Status will be determined based
on the following definitions:

     "Level I Status" exists at any date if, as of the last day of the then most
recently ended fiscal quarter of the Borrower, the Leverage Ratio is greater
than 3.0 to 1.0.

     "Level II Status" exists at any date if, as of the last day of the then
most recently ended fiscal quarter of the Borrower, the Leverage Ratio is
greater than 2.75 to 1.0 but less than or equal to 3.0 to 1.0.

     "Level III Status" exists at any date if, as of the last day of the then
most recently ended fiscal quarter of the Borrower, the Leverage Ratio is
greater than 2.5 to 1.0 but less than or equal to 2.75 to 2.1.

     "Level IV Status" exists at any date if, as of the last day of the then
most recently ended fiscal quarter of the Borrower, the Leverage Ratio is
greater than 2.0 to 1.0 but less than or equal to 2.5 to 1.0.


                                     Page 25
<PAGE>

     "Level V Status" exists at any date if, as of the last day of the then most
recently ended fiscal quarter of the Borrower, the Leverage Ratio is greater
than 1.5 to 1.0 but less than or equal to 2.0 to 1.0.

     "Level VI Status" exists at any date if, as of the last day of the then
most recently ended fiscal quarter of the Borrower, the Leverage Ratio is less
than or equal to 1.5 to 1.0.

Notwithstanding the foregoing, the Applicable Margin for the period from the
date hereof until the receipt of the financial statements for the fiscal quarter
ended [January 31, 1997] shall be the Applicable Martin determined based upon
the Leverage Ratio applicable on the date hereof (after taking into account all
borrowings on the closing date) but in no event shall be less than Level III.

     2.6  REDUCTIONS IN AGGREGATE FACILITY B COMMITMENT.  The Borrower may, at
its option, permanently reduce the Aggregate Facility B Commitment in whole, or
in part ratably among the Lenders in a minimum aggregate amount of at least
$500,000 or any integral multiple of $100,000 in excess thereof upon at least
one Business Days' written notice to the Agent, which notice shall specify the
amount of any such reduction; PROVIDED, HOWEVER, that the amount of the
Aggregate Facility B Commitment may not be reduced below the sum of (i) the
Dollar Equivalent of the aggregate principal amount of the then outstanding
Facility B Advances PLUS (ii) the Facility B Letter of Credit Obligations.

     2.7. PRINCIPAL PAYMENTS.

          2.7.1.  OPTIONAL PAYMENTS.  Any Borrowing Entity may from time to time
     pay or pre-pay, without penalty or premium, all outstanding Alternate Base
     Rate Advances which are Facility B Advances, or, in a minimum aggregate
     amount of $200,000 or any integral multiple of $100,000 in excess thereof,
     any portion of the outstanding Alternate Base Rate Advances which are
     Facility B Advances upon same day notice to the Agent.  The Acquisition
     Subsidiary may from time to time pre-pay, without penalty (other than
     funding indemnification under 2.20.5) , all outstanding Facility A
     Advances, or, in a minimum aggregate amount of at least $5,000,000 or any
     integral multiple of $500,000 in excess thereof, any portion of the
     outstanding Facility A Advances, upon one Business Day's notice to the
     Agent.  The amount of each voluntary prepayment of Facility A Advances made
     pursuant to this SECTION 2.7.1 shall be applied to the unpaid installments
     of the Facility A Loans on a pro-rata basis.  A Fixed Rate Advance may be
     paid or prepaid prior to the last day of the applicable Interest Period,
     subject to SECTION 2.20.5.

          2.7.2.  CURRENCY FLUCTUATIONS; PERMITTED EXCESS OVER AGGREGATE
     COMMITMENT.  If at any time the Agent shall determine that the aggregate
     principal amount of outstanding Advances and Facility B Letter of Credit
     Obligations (after determining the Dollar Equivalent thereof) is greater
     than 110% of the Aggregate Commitment then in effect, one or more of the
     Borrowing Entities shall, upon one (1) Business Day's written notice to the
     Borrower from the Agent, prepay an aggregate principal amount of Advances
     such that the Dollar Equivalent of the aggregate principal amount of
     outstanding Advances and Facility B Letter of Credit Obligations does not
     exceed 110% of the Aggregate Commitment then in effect, PROVIDED that this
     SECTION 2.7.2 shall not be interpreted to permit any Borrowing Entity to


                                     Page 26
<PAGE>

     request the making of a new Advance or the issuance or extension of a
     Facility B Letter of Credit if the aggregate principal amount of
     outstanding Advances and Facility B Letter of Credit Obligations would,
     after giving effect to such new Advance or Facility B Letter of Credit,
     exceed the Aggregate Commitment then in effect; PROVIDED FURTHER, HOWEVER,
     that a Borrowing Entity may request continuations and conversions of
     existing Advances as described in SECTION 2.9 when the Dollar Equivalent of
     the aggregate principal amount of outstanding Advances and Facility B
     Letter of Credit Obligations would, after giving effect to such
     continuation or conversion, exceed the Aggregate Commitment so long as the
     Dollar Equivalent of the aggregate principal amount of outstanding Advances
     and Facility B Letter of Credit Obligations would not, after giving effect
     to such continuation or conversion, exceed 110% of the Aggregate
     Commitment.

          2.7.3.  TERMINATION.  Each Borrowing Subsidiary shall repay, on the
     Facility B Termination Date, the entire unpaid principal amount of the
     Facility B Advances made to it and repay (or cash collateralize) all other
     Borrowing Subsidiary Obligations applicable to it.  The Borrower shall pay
     in full, on the Facility B Termination Date, the entire unpaid principal
     amount of the Facility B Advances made to it and repay (or cash
     collateralize) all other unpaid Obligations, all as more fully set forth in
     SECTION 3.9 and Article XIV.

          2.7.4.  MANDATORY PREPAYMENTS.

              (i)   Upon the consummation of any Asset Sale by the Borrower or
                    any Borrowing Subsidiary of the Borrower, other than an
                    Excluded Asset Sale, the Net Cash Proceeds of which are
                    greater than $1,000,000, within three (3) Business Days
                    after the Borrower's or any of its Subsidiaries' (i) receipt
                    of any Net Cash Proceeds from any such Asset Sale, or (ii)
                    conversion to cash or Cash Equivalents of non-cash proceeds
                    (whether principal or interest and including securities,
                    release of escrow arrangements or lease payments) received
                    from any Asset Sale, the Borrower shall make or cause to be
                    made a mandatory prepayment of the Obligations in an amount
                    equal to (y) one hundred percent (100%) of such Net Cash
                    Proceeds or such proceeds converted from non-cash to Cash
                    Equivalents.

             (ii)   Within five (5) Business Days after the receipt by the
                    Borrower or any Subsidiary of any proceeds of Indebtedness
                    (other than Permitted Indebtedness), the Borrower shall make
                    or cause to be made a mandatory prepayment in an amount
                    equal to one hundred percent (100%) of the net proceeds of
                    such proceeds of Indebtedness.

            (iii)   Nothing in this SECTION 2.7.4 shall be construed to
                    constitute the Lenders' consent to any transaction referred
                    to in clause (i) or (ii) above which is not expressly
                    permitted by the terms of this Agreement.


                                     Page 27
<PAGE>

             (iv)   Each mandatory prepayment required by clause (i) and (ii) of
                    this SECTION 2.4 shall be referred to herein as a
                    "Designated Prepayment".  Designated Prepayments shall be
                    allocated and applied to the Obligations as follows:

                    (I)  the amount of each Designated Prepayment made in
                         connection with an Asset Sale described in subsection
                         (i) of the definition of Asset Sale shall be applied to
                         the unpaid installments of the Facility A Loans pro
                         rata, and the amount of each Designated Prepayment made
                         in connection with an Asset Sale described in
                         subsection (ii) of the definition of Asset Sale  or in
                         connection with the receipt of proceeds of any
                         Indebtedness shall be applied to the unpaid
                         installments of the Facility A Loans in the inverse
                         order of maturity; and

                    (II) except as set forth below, following the payment in
                         full of the Facility A Loans, the amount of each
                         Designated Prepayment shall be applied to repay
                         Facility B Loans (but shall reduce Facility B
                         Commitments only at the option of the Borrower).

              (v)   On the date any Designated Prepayment is received by the
                    Agent, such prepayment shall be applied first to Alternate
                    Base Rate Loans and to any Fixed Rate Loans maturing on such
                    date.  The Agent shall hold the remaining portion of such
                    Designated Prepayment as cash collateral in an interest
                    bearing deposit account and shall apply funds from such
                    account to repay subsequently maturing Fixed Rate Loans in
                    order of maturity (which Fixed Rate Loans shall continue to
                    accrue interest at the applicable Fixed Rate until such
                    repayment has been made).

      2.8.     METHOD OF SELECTING TYPES AND INTEREST PERIODS FOR NEW ADVANCES.
A Borrowing Entity shall select the Type of Advance and, in the case of each
Eurocurrency Advance, the Eurocurrency applicable thereto and, in the case of
each Fixed Rate Advance, the Interest Period applicable thereto from time to
time.  A Borrowing Entity shall give the Agent irrevocable notice (a "Borrowing
Notice") not later than 10:00 a.m. (Chicago time) on the Borrowing Date of each
Alternate Base Rate Advance, at least one Business Day before the Borrowing Date
of each Fixed CD Rate Advance and at least three Business Days before the
Borrowing Date for each Eurocurrency Advance, specifying:

     (i)  the name of the Borrowing Entity,

    (ii)  the Borrowing Date, which shall be a Business Day, of such Advance,

   (iii)  the aggregate amount of such Advance,

    (iv)  the Type of Advance selected,


                                     Page 28
<PAGE>

     (v)  in the case of each Eurocurrency Advance, the Eurocurrency applicable
          thereto, and

    (vi)  in the case of each Fixed Rate Advance, the Interest Period applicable
          thereto.

In the case of Eurocurrency Advances (other than Eurodollar Advances), not later
than 11:00 a.m. (London time) on the Borrowing Date thereof, each Lender shall
make available its Eurocurrency Loan or Eurocurrency Loans, in funds immediately
available in London, in the Foreign Currency selected by the Borrowing Entity,
to the Agent at its London address specified in SCHEDULE 2 attached hereto or at
any other Lending Installation of the Agent specified in writing by the Agent to
the Borrower.  In the case of all other Advances, not later than noon (Chicago
time) on each Borrowing Date, each Lender shall make available its Loan or
Loans, in funds immediately available in Chicago, in Dollars, to the Agent at
its Chicago address specified in SCHEDULE 2 or at any other Lending Installation
of the Agent specified in writing by the Agent to the Borrower.  The Agent will
make the funds so received from the Lenders immediately available to the
Borrower at the Agent's aforesaid address, as applicable.

      2.9.     CONVERSION AND CONTINUATION OF OUTSTANDING ADVANCES.

          2.9.1.  DOLLAR ADVANCES.  Alternate Base Rate Advances shall continue
     as Alternate Base Rate Advances unless and until such Alternate Base Rate
     Advances are converted into Fixed Rate Advances, in Dollars.  Each Fixed
     Rate Advance, in Dollars, of any Type shall continue as a Fixed Rate
     Advance, in Dollars, of such Type until the end of the then applicable
     Interest Period therefor, at which time such Fixed Rate Advance shall be
     automatically converted into an Alternate Base Rate Advance unless repaid
     or unless the applicable Borrowing Entity shall have given the Agent a
     Conversion/Continuation Notice requesting that, at the end of such Interest
     Period, such Fixed Rate Advance either continue as a Fixed Rate Advance, in
     Dollars, of such Type for the same or another Interest Period or be
     converted into an Advance, in Dollars, of another Type.  Subject to the
     terms of SECTIONS 2.20.5 and 2.3, the Borrower may elect from time to time
     to convert all or any part of an Advance, in Dollars, of any Type into any
     other Type or Types of Advances, in Dollars.

          2.9.2.  FOREIGN CURRENCY ADVANCES.  Each Eurocurrency Advance, in a
     Foreign Currency, shall continue as such until the end of the then
     applicable Interest Period therefor, at which time such Eurocurrency
     Advance shall automatically be deemed to be continued as a Eurocurrency
     Advance in the same amount and the same Foreign Currency with a
     Eurocurrency Interest Period of one month (commencing on the last day of
     the expiring Interest Period), unless the applicable Borrowing Entity shall
     have given the Agent a Conversion/Continuation Notice requesting that, at
     the end of such Interest Period, such Eurocurrency Advance continue as a
     Eurocurrency Advance in the same Foreign Currency for the same or another
     Eurocurrency Interest Period.

          2.9.3.  GENERAL PROVISIONS.  The applicable Borrowing Entity shall
     give the Agent irrevocable notice (a "Conversion/Continuation Notice") of
     each conversion of an Advance or continuation of a Fixed Rate Advance (as
     permitted by the provisions of SECTIONS 2.9.1 and 2.9.2) not later than
     10:00 a.m. (Chicago time) on, in the case of a conversion into an Alternate
     Base Rate Advance, at least one Business Day prior to, in the case of a
     conversion


                                     Page 29
<PAGE>

     into a Fixed CD Rate Advance or a continuation of a Fixed CD Rate Advance,
     or three Business Days prior to, in the case of a conversion into or
     continuation of a Eurocurrency Advance, the date of the requested
     conversion or continuation, specifying:

          (i)  the requested date, which shall be a Business Day, of such
               conversion or continuation;

         (ii)  the aggregate amount, Eurocurrency and Type of the Advance which
               is to be converted or continued; and

        (iii)  the amount and Type(s) of Advance(s) into which such Advance is
               to be converted or continued and, in the case of a conversion
               into or continuation of a Fixed Rate Advance, the duration of the
               Interest Period applicable thereto.

     Notwithstanding the provisions of SECTIONS 2.9.1 and 2.9.2, no Fixed Rate
     Advance shall be continued as or converted into a Fixed Rate Advance for a
     new Interest Period if the Dollar Equivalent of the aggregate principal
     amount of Advances and Facility B Letter of Credit Obligations to be
     outstanding after giving effect to such continuation or conversion would
     exceed 110% of the Aggregate Commitment then in effect.

     2.10.     CHANGES IN INTEREST RATE, ETC.  Each Alternate Base Rate Advance
shall bear interest on the outstanding principal amount thereof, for each day
from and including the date such Advance is made or is converted from a Fixed
Rate Advance into an Alternate Base Rate Advance pursuant to SECTION 2.9.1 to
(but excluding) the date it becomes due or is converted into a Fixed Rate
Advance pursuant to SECTION 2.9.1 hereof, at a rate per annum equal to the
Alternate Base Rate for such day.  Changes in the rate of interest on that
portion of any Advance maintained as an Alternate Base Rate Advance will take
effect simultaneously with each change in the Alternate Base Rate.  Each Fixed
Rate Advance shall bear interest from and including the first day of the
Interest Period applicable thereto to (but not including) the last day of such
Interest Period at the interest rate determined as applicable to such Fixed Rate
Advance.  No Interest Period applicable to a Facility A Advance may end after
the Facility A Termination Date.  No Interest Period applicable to a Facility B
Advance may end after the Facility B Termination Date.

     2.11.     RATES APPLICABLE AFTER DEFAULT.  Notwithstanding anything to the
contrary contained in SECTION 2.8 or 2.9, during the continuance of a Default or
Unmatured Default no Advance may be made as, converted into or continued as (as
such terms are used in SECTION 2.9) a Fixed Rate Advance (except with the
consent of the Required Lenders).  During the continuance of a Default the
Required Lenders may, at their option, by notice to the Borrower (which notice
may be revoked at the option of the Required Lenders notwithstanding any
provision of SECTION 8.2 requiring unanimous consent of the Lenders to changes
in interest rates), declare that (i) each Fixed Rate Advance shall bear interest
for the remainder of the applicable Interest Period at the rate otherwise
applicable to such Interest Period plus 2% per annum and (ii) each Alternate
Base Rate Advance shall bear interest at a rate per annum equal to the Alternate
Base Rate otherwise applicable to the Alternate Base Rate Advance plus 2% per
annum.


                                     Page 30
<PAGE>

     2.12.     METHOD OF PAYMENT.

          2.12.1.  GENERAL.  All payments of the Obligations hereunder shall be
     made, without setoff, deduction, or counterclaim, in immediately available
     funds, to the Agent, in Dollars, at the Agent's address for Dollar
     Advances, as specified in SCHEDULE 2 hereto (or, in the case of payments of
     principal of and interest on Foreign Currency Advances, in the Foreign
     Currency borrowed, at the Agent's address for Foreign Currency Advances, as
     specified in SCHEDULE 2 hereto), or at any other Lending Installation of
     the Agent specified in writing by the Agent to the Borrower, by noon (local
     time) on the date when due and shall be applied ratably by the Agent among
     the Lenders.  Each payment delivered to the Agent for the account of any
     Lender shall be delivered promptly by the Agent to such Lender, in the same
     type of funds that the Agent received, at such Lender's address for Dollar
     Advances or for Foreign Currency Advances, as specified in SCHEDULE 2
     hereto, or at any other Lending Installation specified in a notice received
     by the Agent from such Lender.  The Agent is hereby authorized, upon prior
     notice to the Borrower, to charge the loan account of the Borrower
     maintained with First Chicago for each payment of principal, interest and
     fees as it becomes due hereunder.

          2.12.2.  CURRENCY OF PAYMENT.  All payments of principal of and
     interest on any Advance or of Reimbursement Obligations or any other
     Obligations hereunder shall be made by the Borrowing Entity responsible
     therefor in the currency borrowed (the "Specified Currency") in the manner
     and at the address (the "Specified Place") specified in SECTION 2.12.1.
     Payment of the Obligations shall not be discharged by an amount paid in
     another currency or in another place, whether pursuant to a judgment or
     otherwise, to the extent that the amount so paid on conversion to the
     Specified Currency and transfer to the Specified Place under normal banking
     procedures does not yield the amount of the Specified Currency at the
     Specified Place due hereunder.  If, for the purpose of obtaining judgment
     in any court, it is necessary to convert a sum due hereunder in the
     Specified Currency into another currency (the "Judgment Currency"), the
     rate of exchange which shall be applied shall be that at which in
     accordance with normal banking procedures the Agent could purchase the
     Specified Currency with that amount of the Judgment Currency on the
     Business Day next preceding that on which such judgment is rendered.  The
     obligation of the Borrower in respect of any such sum due from it to the
     Agent or any Lender hereunder (an "Entitled Person") shall, notwithstanding
     the rate of exchange actually applied in rendering such judgment, be
     discharged only to the extent that on the Business Day following receipt by
     such Entitled Person of any sum adjudged to be due hereunder or under the
     Notes in the Judgment Currency, such Entitled Person may in accordance with
     normal banking procedures purchase and transfer to the Specified Place the
     Specified Currency with the amount of the Judgment Currency so adjudged to
     be due; and the Borrower hereby, as a separate Obligation and
     notwithstanding any such judgment, agrees to indemnify such Entitled Person
     against, and to pay such Entitled Person on demand, in the Specified
     Currency, any difference between the sum originally due to such Entitled
     Person in the Specified Currency and the amount of the Specified Currency
     so purchased and transferred.

     2.13.     NOTES; TELEPHONIC NOTICES.  Each Lender is hereby authorized to
record the principal amount of each of its Loans and each repayment thereof on
the schedule attached to its Notes;


                                     Page 31
<PAGE>

PROVIDED, HOWEVER, that the failure to so record shall not affect the Borrowing
Entities' obligations under such Notes.  Each Borrowing Entity hereby authorizes
the Lenders and the Agent to extend, convert or continue its Advances, effect
selections of Types of its Advances and to transfer funds, and the Issuing Bank
to issue Facility B Letters of Credit for its account, based on telephonic
notices made by any person or persons the Agent or any Lender in good faith
believes to be acting on behalf of such Borrowing Entity.  Each Borrowing Entity
agrees to deliver promptly to the Agent a written confirmation, if such
confirmation is requested by the Agent or any Lender, of each telephonic notice
signed by any of its Authorized Officers.  If the written confirmation differs
in any material respect from the action taken by the Agent and the Lenders, the
records of the Agent and the Lenders shall govern absent manifest error.

     2.14.     INTEREST PAYMENT DATES; INTEREST AND FEE BASIS.  Interest accrued
on each Alternate Base Rate Advance shall be payable on each Payment Date,
commencing with the first such date to occur after the date hereof, on any date
on which the Alternate Base Rate Advance is prepaid due to acceleration and at
maturity.  Interest accrued on each Fixed Rate Advance shall be payable on the
last day of its applicable Interest Period, on any date on which the Fixed Rate
Advance is prepaid, whether by acceleration or otherwise, and at maturity.
Interest accrued on each Fixed Rate Advance having an Interest Period longer
than three months shall also be payable on the last day of each three-month
interval during such Interest Period.  Interest and fees shall be calculated for
actual days elapsed on the basis of a 360-day year.  Interest shall be payable
for the day an Advance is made but not for the day of any payment on the amount
paid if payment is received prior to noon (local time) at the place of payment.
If any payment of principal of or interest on an Advance shall become due on a
day which is not a Business Day, such payment shall be made on the next
succeeding Business Day and, in the case of a principal payment, such extension
of time shall be included in computing interest in connection with such payment.

     2.15.     NOTIFICATION BY AGENT.  Promptly after receipt thereof, the Agent
will notify each Lender of the contents of each Aggregate Facility B Commitment
reduction notice, Borrowing Notice, Conversion/Continuation Notice, Letter of
Credit Request, Issuance Notice and repayment notice received by it hereunder.
The Agent will notify each Lender of the interest rate applicable to each Fixed
Rate Advance promptly upon determination of such interest rate and will give
each Lender prompt notice of each change in the Alternate Base Rate.

     2.16.     LENDING INSTALLATIONS.  Subject to SECTION 2.20.6, each Lender
may book its Loans at any Lending Installation selected by such Lender and may
change its Lending Installation from time to time, PROVIDED that such Lender
shall remain the legal entity exclusively entitled to all rights and responsible
for all obligations of a Lender hereunder unless such Lender enters into an
assignment in compliance with the provisions of SECTION 12.3.  All terms of this
Agreement shall apply to any such Lending Installation and the Notes shall be
deemed held by each Lender for the benefit of such Lending Installation.
Subject to SECTION 2.20.6, each Lender may, by written or telex notice to the
Agent and the Borrower, designate a Lending Installation through which Loans
will be made by it and for whose account Loan payments are to be made.

     2.17.     NON-RECEIPT OF FUNDS BY THE AGENT.  Unless any Borrowing Entity
or a Lender, as the case may be, notifies the Agent prior to the date on which
it is scheduled to make payment to the Agent of (i) in the case of a Lender, the
proceeds of a Loan or (ii) in the case of any Borrowing


                                     Page 32
<PAGE>

Entity, a payment of principal, interest or fees to the Agent for the account of
the Lenders, that it does not intend to make such payment, the Agent may assume
that such payment has been made.  The Agent may, but shall not be obligated to,
make the amount of such payment available to the intended recipient in reliance
upon such assumption.  If such Lender or any Borrowing Entity, as the case may
be, has not in fact made such payment to the Agent, the recipient of such
payment shall, on demand by the Agent, repay to the Agent the amount so made
available together with interest thereon in respect of each day during the
period commencing on the date such amount was so made available by the Agent
until the date the Agent  recovers such amount at a rate per annum equal to (i)
in the case of payment by a Lender, the Federal Funds Effective Rate for such
day or (ii) in the case of payment by any Borrowing Entity, the interest rate
applicable to the relevant Loan.

     2.18.     WITHHOLDING TAX EXEMPTION. At least five Business Days prior to
the first date on which interest or fees are payable hereunder for the account
of any Lender, each Lender that is not incorporated under the laws of the United
States of America, or a state thereof, agrees that it will deliver to each of
the Borrower and the Agent two duly completed copies of United States Internal
Revenue Service Form 1001 or 4224, certifying in either case that such Lender is
entitled to receive payments under this Agreement and the Notes without
deduction or withholding of any United States federal income taxes.  Each Lender
which so delivers a Form 1001 or 4224 further undertakes to deliver to each of
the Borrower and the Agent two additional copies of such form (or a successor
form) on or before the date that such form expires (currently, three successive
calendar years for Form 1001 and one calendar year for Form 4224) or becomes
obsolete or after the occurrence of any event requiring a change in the most
recent forms so delivered by it, and such amendments thereto or extensions or
renewals thereof as may be reasonably requested by the Borrower or the Agent, in
each case certifying that such Lender is entitled to receive payments under this
Agreement and the Notes without deduction or withholding of any United States
federal income taxes, unless an event (including without limitation any change
in treaty, law or regulation) has occurred prior to the date on which any such
delivery would otherwise be required which renders all such forms inapplicable
or which would prevent such Lender from duly completing and delivering any such
form with respect to it and such Lender advises the Borrower and the Agent that
it is not capable of receiving payments without any deduction or withholding of
United States federal income tax.  In the event that any Foreign Subsidiary
becomes a Borrowing Subsidiary hereunder, each Lender will (i) cooperate with
the Borrower and such Foreign Subsidiary to determine which tax and withholding
forms, if any, may be required by the laws of the country of incorporation of
such Borrowing Subsidiary in order to establish that payments under this
Agreement and the other Loan Documents from such Foreign Subsidiary to such
Lender can be made without deduction or withholding for (or any other liability
to pay) any Taxes of such country or any Governmental Agency thereof and (ii)
file any such forms described in clause (i) as may be applicable to such Lender,
advantageous to the Borrowing Entities and not, in the opinion of such Lender,
disadvantageous to such Lender.

     2.19.     EXTENSION OF FACILITY B TERMINATION DATE.  The Borrower may
request an extension of the then current Facility B Termination Date for a
period of one year, by submitting a request for an extension to the Agent (an
"Extension Request") not more than 90 days, but not less than 60 days, prior to
the then current Extension Date.  Promptly upon receipt of an Extension Request,
the Agent shall deliver a copy thereof to the Lenders.  Each Lender may, by an
irrevocable notice (a "Consent Notice") to the Borrower and the Agent given
within 30 days after receipt of the Extension Request by the Agent, consent to
such Extension Request of the Borrower, which consent may be given or


                                     Page 33
<PAGE>

withheld by each Lender in its absolute and sole discretion.  Failure by any
Lender to give its consent in writing within such 30 day period shall be deemed
a refusal by such Lender of such Extension Request.  If less than all of the
Lenders consent to the Extension Request, the Borrower's request shall be denied
and the Facility B Termination Date shall remain unchanged.  If consent is
obtained from all of the Lenders prior to the then current Extension Date, the
Facility B Termination Date shall be so extended and all references in the Loan
Documents to "Facility B Termination Date" shall refer to the Facility B
Termination Date, as so extended.

     2.20.     CHANGE IN CIRCUMSTANCES.

          2.20.1.  TAXES.

               (a)  PAYMENTS TO BE FREE AND CLEAR.  All sums payable by any
          Borrowing Entity whether in respect of principal, interest, fees or
          otherwise shall be paid without deduction for any present and future
          taxes, levies, imposts, deductions, charges or withholdings imposed by
          any country, any Governmental Agency thereof or therein, any
          jurisdiction from which any or all such payments are made and any
          political subdivision or taxing authority thereof or therein,
          EXCLUDING income and franchise taxes (and deductions and withholdings
          therefor) imposed on the Agent or any Lender (x) by the jurisdiction
          under the laws of which the Agent or such Lender is organized or any
          Governmental Agency or taxing authority thereof or therein, or (y) by
          any jurisdiction in which the Agent's or such Lender's Lending
          Installations are located or any Governmental Agency or taxing
          authority thereof or therein (such excluded taxes, deductions and
          withholdings, collectively, "Excluded Taxes"; and all such taxes,
          levies, imposts, deductions, charges and withholdings (including
          Excluded Taxes), collectively, "Taxes"), which amounts shall be paid
          by any Borrowing Entity as provided in SECTION 2.20.1(b).  Any
          Borrowing Entity will pay each Lender the amounts necessary such that
          the net amount of the principal, interest, fees or other sums received
          and retained by each Lender is not less than the amount payable under
          this Agreement.

               (b)  GROSSING-UP OF PAYMENTS.  If: (a) any Borrowing Entity or
          any other Person is required by law to make any deduction or
          withholding on account of any Tax (other than Excluded Taxes) or other
          amount from any sum paid or expressed to be payable by any Borrowing
          Entity to any Lender under this Agreement; or (b) any party to this
          Agreement (or any Person on its behalf) other than any Borrowing
          Entity is required by law to make any deduction or withholding from,
          or (other than on account of any Excluded Tax) any payment on or
          calculated by reference to the amount of, any such sum received or
          receivable by any Lender under this Agreement:

          (i)  such Borrowing Entity shall notify the Agent of any such
               requirement or any change in any such requirement as soon as any
               Borrowing Entity becomes aware of it;

         (ii)  such Borrowing Entity shall pay any such Tax or other amount
               before the date on which penalties attached thereto become due
               and payable, such payment to


                                     Page 34
<PAGE>

               be made (if the liability to pay is imposed on such Borrowing
               Entity) for its own account or (if that liability is imposed on
               any other party to this Agreement) on behalf of and in the name
               of that party;

        (iii)  the sum payable by such Borrowing Entity in respect of which the
               relevant deduction, withholding or payment is required shall
               (except, in the case of any such payment, to the extent that the
               amount thereof is not ascertainable when that sum is paid) be
               increased to the extent necessary to ensure that, after the
               making of that deduction, withholding or payment, that party
               receives on the due date and retains (free from any liability in
               respect of any such deduction, withholding or payment) a sum
               equal to that which it would have received and so retained had no
               such deduction, withholding or payment been required or made; and

         (iv)  within thirty (30) days after payment of any sum from which such
               Borrowing Entity is required by law to make any deduction or
               withholding, and within thirty (30) days after the due date of
               payment of any Tax or other amount which it is required by
               SECTION 2.20.1(b)(ii) to pay, it shall deliver to the Agent all
               such certified documents and other evidence as to the making of
               such deduction, withholding or payment as (a) are reasonably
               satisfactory to other affected parties as proof of such
               deduction, withholding or payment and of the remittance thereof
               to the relevant taxing or other authority and (b) are reasonably
               required by any such party to enable it to claim a tax credit
               with respect to such deduction, withholding or payment.

          2.20.2.  YIELD PROTECTION.  (a) If the adoption or promulgation on or
     after the date hereof of any law or any governmental or quasi-governmental
     rule, regulation, policy, guideline or directive (whether or not having the
     force of law), or any change on or after the date hereof in the
     interpretation thereof, or the compliance of any Lender with any such
     adoption, promulgation or change in interpretation,

     (i)  subjects any Lender or any applicable Lending Installation to any Tax
          on or from payments due from any Borrowing Entity (excluding Excluded
          Taxes), or changes the basis of taxation of payments to any Lender in
          respect of its Loans, its interest in the Facility B Letters of Credit
          or other amounts due it hereunder (excluding Excluded Taxes), or

    (ii)  imposes, increases or deems applicable any reserve, assessment,
          insurance charge, special deposit or similar requirement against
          assets of, deposits with or for the account of, or credit extended by,
          any Lender or any applicable Lending Installation (other than reserves
          and assessments taken into account in determining the interest rate
          applicable to Fixed Rate Advances), or

   (iii)  imposes any other condition (except with respect to Excluded Taxes)
          the result of which is to increase the cost to any Lender or any
          applicable Lending Installation of making, funding or maintaining
          Loans or issuing Facility B Letters of Credit or


                                     Page 35
<PAGE>

          reduces any amount receivable by any Lender or any applicable Lending
          Installation in connection with Loans or Facility B Letters of Credit,
          or requires any Lender or any applicable Lending Installation to make
          any payment calculated by reference to the amount of Loans held,
          Facility B Letters of Credit issued or participated in or interest
          received by it, by an amount deemed material by such Lender,

     then, within 15 days of demand by such Lender, the Borrower shall pay such
     Lender that portion of such increased expense incurred or reduction in an
     amount received which such Lender reasonably determines is attributable to
     making, funding and maintaining its Loans, its interest in the Facility B
     Letters of Credit, and its Commitment.

          (b)  In addition to any other amounts payable by the Borrowing
     Entities hereunder, each Lender may require the relevant Borrowing Entity
     to pay, contemporaneously with each payment of interest on Eurocurrency
     Advances of such Borrowing Entity which are denominated in pounds sterling,
     additional interest on the related Eurocurrency Loan of such Lender at the
     percentage calculated from time to time by such Lender to be the percentage
     required to fully compensate such Lender for all reserve costs,
     liabilities, expenses and assessments (other than reserve costs,
     liabilities, expenses and assessments taken into account in determining the
     interest rate applicable to such Eurocurrency Advance) which have been
     incurred by such Lender (or its applicable Lending Installation) in
     complying with any and all requirements of any relevant United Kingdom
     banking authority or authorities applicable to such Lender (or its
     applicable Lending Installation) regarding the making, funding or
     maintaining of such Eurocurrency Loan (including, without limitation, any
     and all liquid asset maintenance requirements of the Bank of England).  A
     certificate of any Lender claiming compensation under the preceding
     sentence, setting forth the additional interest to be paid to it thereunder
     and setting forth in reasonable detail a reasonable basis therefor, shall
     be conclusive in the absence of manifest error, and in determining the
     amount of such interest, such Lender may use any reasonable averaging and
     attribution methods.  Any Lender wishing to require payment of such
     additional interest (x) shall so notify the relevant Borrowing Entity and
     the Agent, in which case such additional interest on the Eurocurrency Loans
     of such Lender denominated in pounds sterling shall be payable in pounds
     sterling to such Lender at the place indicated in such notice with respect
     to each Interest Period commencing at least five Business Days after the
     giving of such notice and (y) shall notify the relevant Borrowing Entity at
     least five Business Days prior to each date on which interest is payable on
     such Eurocurrency Loans of the amount then due it under this Section.

           2.20.3.  CHANGES IN CAPITAL ADEQUACY REGULATIONS.  If a Lender
     determines the amount of capital required or expected to be maintained by
     such Lender, any applicable Lending Installation of such Lender or any
     corporation controlling such Lender is increased as a result of a Change,
     then, within 15 days of demand by such Lender, the Borrower shall pay such
     Lender the amount necessary to compensate for any shortfall in the rate of
     return on the portion of such increased capital which such Lender
     determines is attributable to this Agreement, its Loans, its interest in
     the Facility B Letters of Credit, or its obligation to make Loans,
     participate in or issue Facility B Letters of Credit hereunder (after
     taking into account such Lender's policies as to capital adequacy).
     "Change" means (i) any change after the date of this Agreement in the
     Risk-Based Capital Guidelines or (ii) any adoption of or change in


                                     Page 36
<PAGE>

     any other law, governmental or quasi-governmental rule, regulation, policy,
     guideline, interpretation, or directive (whether or not having the force of
     law) after the date of this Agreement which affects the amount of capital
     required or expected to be maintained by any Lender or any Lending
     Installation or any corporation controlling any Lender.  "Risk-Based
     Capital Guidelines" means (i) the risk-based capital guidelines in effect
     in the United States on the date of this Agreement, including transition
     rules, and (ii) the corresponding capital regulations promulgated by
     regulatory authorities outside the United States implementing the July 1988
     report of the Basle Committee on Banking Regulation and Supervisory
     Practices entitled "International Convergence of Capital Measurements and
     Capital Standards," including transition rules, and any amendments to such
     regulations adopted prior to the date of this Agreement.

           2.20.4.  AVAILABILITY OF TYPES OF ADVANCES.  If any Lender determines
     that maintenance of its Eurocurrency Loans at a suitable Lending
     Installation would violate any applicable law, rule, regulation, or
     directive, whether or not having the force of law, or if the Required
     Lenders determine that (i) deposits of a type and maturity appropriate to
     match fund Fixed Rate Advances of any Type are not available or (ii) the
     interest rate applicable to any Type of Fixed Rate Advance does not
     accurately reflect the cost of making or maintaining such Advance, then the
     Agent shall suspend the availability of the affected Type of Advance and
     require any Fixed Rate Advances of the affected Type to be repaid.

          2.20.5.   FUNDING INDEMNIFICATION.  If any payment of a Fixed Rate
     Advance occurs on a date which is not the last day of the applicable
     Interest Period, whether because of acceleration, prepayment or otherwise,
     or a Fixed Rate Advance is not made on the date specified by the Borrower
     for any reason other than default by the Lenders, the Borrower will
     indemnify each Lender for any loss or cost (including lost profits)
     incurred by it resulting therefrom, including, without limitation, any loss
     or cost in liquidating or employing deposits acquired to fund or maintain
     the Fixed Rate Advance.  In connection with any assignment by any Lender
     pursuant to SECTION 12.3 of any portion of the Loans made prior to three
     months after the date hereof, if any Borrowing Entity has Fixed Rate Loans
     outstanding, such Borrowing Entity shall be deemed to have repaid all
     outstanding Fixed Rate Advances as of such date and reborrowed such amount
     as a Floating Rate Advance and/or Fixed Rate Advance (chosen in accordance
     with the provisions of SECTION 2.2) and the indemnification provisions
     under this SECTION 2.20.5 shall apply.

          2.20.6.   LENDER STATEMENTS; SURVIVAL OF INDEMNITY. To the extent
     reasonably possible, each Lender shall designate an alternate Lending
     Installation with respect to its Fixed Rate Loans to reduce any liability
     or obligation of the Borrowing Entities to such Lender under Sections
     2.20.1, 2.20.2 and 2.20.3 or to avoid the unavailability of a Type of
     Advance under Section 2.20.4, so long as such designation is not
     disadvantageous to such Lender.  Each Lender shall deliver a written
     statement of such Lender as to the amount due, if any, under Sections
     2.20.1, 2.20.2, 2.20.3 or 2.20.5.  Such written statement shall set forth
     in reasonable detail the calculations upon which such Lender determined
     such amount and shall be final, conclusive and binding on the Borrower in
     the absence of manifest error.  Determination of amounts payable under such
     Sections in connection with a Fixed Rate Loan shall be calculated as though
     each Lender funded its Fixed Rate Loan through the purchase of


                                     Page 37
<PAGE>

     a deposit of the type and maturity corresponding to the deposit used as a
     reference in determining the Fixed Rate applicable to such Loan, whether in
     fact that is the case or not.  Unless otherwise provided herein, the amount
     specified in the written statement shall be payable on demand after receipt
     by the Borrower of the written statement.  The obligations of the parties
     under Sections 2.20.1, 2.20.2, 2.20.3 and 2.20.5 shall survive payment of
     the Obligations and termination of this Agreement.



                                   ARTICLE III

                        THE LETTER OF CREDIT SUBFACILITY


     3.1. OBLIGATION TO ISSUE.  Subject to the terms and conditions of this
Agreement, upon completion of an application in the form of that set forth in
EXHIBIT C hereto (or, in the case of a Commercial Letter of Credit, a form
acceptable to the Issuing Bank (as defined below) and not inconsistent with the
terms hereof) by a Borrowing Entity and in reliance upon the representations and
warranties of the Borrowing Entities herein set forth, First Chicago (and, at
the discretion of each other Lender in each such instance, each such Lender)
hereby agrees to issue for the account of the applicable Borrowing Entities
through such of such Lender's branches as it and the applicable Borrowing
Entities may jointly agree (PROVIDED that, absent any agreement with the
applicable Borrowing Entity to the contrary, First Chicago will issue Facility B
Letters of Credit through its offices in Chicago, Illinois), one or more
Facility B Letters of Credit in accordance with this Article III, from time to
time during the period, commencing on the Effective Date and ending on the last
Business Day prior to the Facility B Termination Date (upon receipt of an
application for the issuance of a Facility B Letter of Credit, the Lender to
which such application is made shall herein be referred to as the "Issuing Bank"
with respect to such prospective or actual Facility B Letter of Credit).  To the
extent that any term or provision of an application for a Facility B Letter of
Credit hereunder conflicts with the terms and provisions of this Agreement, the
terms and provisions of this Agreement shall control.

     3.2. TYPES AND AMOUNTS.  An Issuing Bank shall not:

     (i)  issue any Facility B Letter of Credit if the aggregate maximum amount
          then available for drawing under Letters of Credit issued by such
          Issuing Bank, after giving effect to the Facility B Letter of Credit
          requested hereunder, shall exceed any limit imposed by law or
          regulation upon such Issuing Bank;

    (ii)  issue any Facility B Letter of Credit if, after giving effect thereto,
          the sum of (a) the Dollar Equivalent of the aggregate unpaid principal
          balance of the Facility B Advances then outstanding PLUS (b) the
          Facility B Letter of Credit Obligations then outstanding would exceed
          the Aggregate Facility B Commitment as then in effect;

   (iii)  issue any Letter of Credit which has an expiration date after the
          Facility B Termination Date;


                                     Page 38
<PAGE>

    (iv)  issue any Facility B Letter of Credit having an expiration date, or
          containing automatic extension provisions to extend such date to a
          date which is, more than twelve (12) months after the date of its
          issuance;

     (v)  [issue any Facility B Letter of Credit if the Facility B Letter of
          Credit Obligations, after giving effect to any Facility B Letter of
          Credit requested hereunder, would exceed $24,985,857 on or prior to
          March 30, 1994 and $15,000,000 thereafter; PROVIDED, HOWEVER, that
          $9,985,857 of such $24,985,857 may only be represented by the MONY
          Letters of Credit; or]

    (vi)  issue any Facility B Letter of Credit if any Default or Unmatured
          Default exists.


     3.3. CONDITIONS.  In addition to being subject to the satisfaction of the
conditions contained in SECTION 4.2, the obligation of an Issuing Bank to issue
any Facility B Letter of Credit is subject to the satisfaction in full of the
following conditions:

     (i)  the applicable Borrowing Entity shall have delivered to such Issuing
          Bank at such times and in such manner as such Issuing Bank may
          reasonably prescribe such documents and materials as may be required
          pursuant to the terms of the proposed Facility B Letter of Credit (it
          being understood that if any inconsistency exists between such
          documents and the Loan Documents, the terms of the Loan Documents
          shall control) and the proposed Facility B Letter of Credit shall be
          reasonably satisfactory to the Issuing Bank as to form and content;
          and

    (ii)  as of the date of issuance, no order, judgment or decree of any court,
          arbitrator or governmental authority shall purport by its terms to
          enjoin or restrain that Issuing Bank from issuing the requested
          Facility B Letter of Credit and no law, rule or regulation applicable
          to that Issuing Bank and no request or directive (whether or not
          having the force of law) from any governmental authority with
          jurisdiction over that Issuing Bank shall prohibit or request that
          such Issuing Bank refrain from the issuance of Letters of Credit
          generally or the issuance of the requested Facility B Letter of Credit
          in particular.

     3.4. PROCEDURE FOR ISSUANCE OF FACILITY B LETTERS OF CREDIT.

          (a)  The applicable Borrowing Entity shall give the Issuing Bank and
     the Agent at least two (2) Business Days' prior written notice of any
     requested issuance of a Facility B Letter of Credit under this Agreement (a
     "Letter of Credit Request") (except that, in lieu of such written notice,
     the applicable Borrowing Entity may give the Issuing Bank and the Agent
     telephonic notice of such request if confirmed in writing by delivery to
     the Issuing Bank and the Agent (i) immediately (A) of a telecopy of the
     written notice required hereunder which has been signed by an Authorized
     Officer or (B) of a telex containing all information required to be
     contained in such written notice and (ii) promptly (but in no event later
     than the requested date of issuance) of the written notice required
     hereunder containing the original signature of an Authorized Officer); such
     notice shall be irrevocable and shall specify:


                                     Page 39
<PAGE>

          (1)  whether the requested Facility B Letter of Credit is a Commercial
               Letter of Credit or a Standby Letter of Credit and, if it is a
               Standby Letter of Credit, whether the applicable Borrowing Entity
               believes it to be a Financial Letter of Credit or a Performance
               Letter of Credit;

          (2)  the stated amount of the Facility B Letter of Credit requested
               (which stated amount shall not be less than $50,000);

          (3)  the effective date (which day shall be a Business Day) of
               issuance of such requested Facility B Letter of Credit (the
               "Issuance Date");

          (4)  the date on which such requested Facility B Letter of Credit is
               to expire (which date shall be a Business Day and shall in no
               event be later than the Facility B Termination Date);

          (5)  the name of the Issuing Bank chosen by the Borrower to issue the
               requested Facility B Letter of Credit;

          (6)  the purpose for which such Facility B Letter of Credit is to be
               issued; and

          (7)  the Person(s) for whose benefit the requested Facility B Letter
               of Credit is to be issued.

     At the time such request is made, the applicable Borrowing Entity shall
     also provide the Agent and the Issuing Bank a copy of the form of the
     Facility B Letter of Credit it is requesting be issued.  Such notice, to be
     effective, must be received by such Issuing Bank and the Agent not later
     than 2:00 p.m. (Chicago time) on the last Business Day on which notice can
     be given under this SECTION 3.4(a).

          (b)  Subject to the terms and conditions of this Article III and
     provided that the applicable conditions set forth in SECTION 4.2 hereof
     have been satisfied, the Issuing Bank shall, on the Issuance Date, issue a
     Facility B Letter of Credit on behalf of the applicable Borrowing Entity in
     accordance with the Issuing Bank's usual and customary business practices
     unless the Issuing Bank has actually received (i) written or telephonic
     notice from the applicable Borrowing Entity specifically revoking the
     Letter of Credit Request with respect to such Facility B Letter of Credit,
     (ii) written notice from the Agent, which complies with the provisions of
     SECTION 3.6(a) or (iii) written or telephonic notice from the Agent stating
     that the issuance of such Facility B Letter of Credit would violate SECTION
     3.2.

          (c)  Each Issuing Bank shall give the Agent and the applicable
     Borrowing Entity written or telex notice, or telephonic notice confirmed
     promptly thereafter in writing, of the issuance of a Facility B Letter of
     Credit (the "Issuance Notice"), which shall indicate, in the case of the
     issuance of a Standby Letter of Credit, the Issuing Bank's reasonable
     determination as to whether such Standby Letter of Credit is a Financial
     Letter of Credit or a Performance Letter of Credit, which determination
     shall be conclusive absent manifest error.


                                     Page 40
<PAGE>

          (d)  An Issuing Bank shall not extend or amend any Facility B Letter
     of Credit (except in accordance with the specific terms of such Facility B
     Letter of Credit) unless the requirements of this SECTION 3.4 are met as
     though a new Facility B Letter of Credit was being requested and issued.

     3.5. REIMBURSEMENT OBLIGATIONS; AUTOMATIC ALTERNATE BASE RATE ADVANCE;
DUTIES OF ISSUING BANKS.

          (a)  (i) Each Issuing Bank shall promptly notify the applicable
     Borrowing Entity and the Agent of any draw under a Facility B Letter of
     Credit.  The applicable Borrowing Entity or the Borrower shall reimburse
     the Issuing Bank for drawings under a Facility B Letter of Credit issued by
     it no later than the next succeeding Business Day after the payment by that
     Issuing Bank (including through the application of proceeds of Advances
     requested for such purpose); and (ii) any Reimbursement Obligation with
     respect to any Facility B Letter of Credit not so reimbursed shall bear
     interest from the date of the relevant drawings under the pertinent
     Facility B Letter of Credit until payment in full is received by such
     Issuing Bank at the Default interest rate for Alternate Base Rate Advances
     calculated in accordance with SECTION 2.11. If the Borrower or applicable
     Borrowing Entity has not reimbursed the Issuing Bank by 10:00 a.m. on such
     next succeeding Business Day (whether with the proceeds of an Advance
     requested hereunder or otherwise), then the Issuing Bank shall immediately
     notify the Agent of such failure.  Provided that the conditions precedent
     set forth in SECTION 4.2 and other requirements of this Agreement for the
     making of an Alternate Base Rate Advance in the aggregate principal amount
     of such Reimbursement Obligation (other than the requirement that the
     Borrowing Entity affirmatively request such Advance) are, in the opinion of
     the Agent, met, the Agent will then promptly notify the Lenders that the
     Borrower is deemed to have made a request for an Alternate Base Rate
     Advance in the aggregate principal amount of such Reimbursement Obligation,
     and each Lender shall make available its Loan or Loans in the manner
     prescribed for Alternate Base Rate Advances herein.  Loans made pursuant to
     this SECTION 3.5 shall be Facility B Loans.  The Agent shall then transfer
     the aggregate principal amount of such Alternate Base Rate Advance to the
     relevant Issuing Bank in satisfaction of the unpaid Reimbursement
     Obligation.  Thereafter, such Advance shall be treated as an Alternate Base
     Rate Advance requested by the Borrower hereunder.

          (b)  Any action taken or omitted to be taken by an Issuing Bank under
     or in connection with any Facility B Letter of Credit, if taken or omitted
     in the absence of willful misconduct or Gross Negligence, shall not put
     that Issuing Bank under any resulting liability to any Lender or, assuming
     that such Issuing Bank has complied with the procedures specified in
     SECTION 3.4 and the Agent has not given a notice contemplated by SECTION
     3.6(a) that continues in full force and effect, relieve that Lender of its
     obligations hereunder to that Issuing Bank.  In determining whether to pay
     under any Facility B Letter of Credit, an Issuing Bank shall have no
     obligation relative to the Lenders other than to confirm that any documents
     required to be delivered under such Facility B Letter of Credit appear to
     have been delivered in compliance and that they appear to comply on their
     face, with the requirements of such Facility B Letter of Credit.

     3.6. PARTICIPATION.


                                     Page 41
<PAGE>

          (a)  Immediately upon issuance by an Issuing Bank of any Facility B
     Letter of Credit in accordance with the procedures set forth in SECTION 3.4
     [(including the Facility B Letter of Credit described in the proviso to
     SECTION 3.2(V))] and immediately upon the date hereof  for the Existing
     Letters of Credit, each Lender shall be deemed to have irrevocably and
     unconditionally purchased and received from that Issuing Bank, without
     recourse, representation or warranty, an undivided interest and
     participation equal to its Percentage in such Facility B Letter of Credit
     (including, without limitation, all obligations of the applicable Borrowing
     Entity with respect thereto) and any security therefor or guaranty
     pertaining thereto; PROVIDED, that a Letter of Credit issued by any Issuing
     Bank shall not be deemed to be a Facility B Letter of Credit for purposes
     of this SECTION 3.6 if such Issuing Bank shall have received written notice
     from the Agent on or before the Business Day prior to the date of its
     issuance of such Letter of Credit that one or more of the conditions
     contained in SECTION 4.2 is not then satisfied, and, in the event an
     Issuing Bank receives such a notice, it shall have no further obligation to
     issue any Facility B Letter of Credit until such notice is withdrawn by the
     Agent or it subsequently receives a notice from the Agent that such
     condition has been effectively waived in accordance with the provisions of
     this Agreement.

          (b)  In the event that any Issuing Bank makes any payment under any
     Facility B Letter of Credit and the applicable Borrowing Entity or the
     Borrower shall not have repaid such amount to such Issuing Bank pursuant to
     SECTIONS 3.5 and 3.7 hereof, such Issuing Bank shall promptly notify the
     Agent, which shall promptly notify each Lender, of such failure, and each
     Lender shall, unless a deemed Alternate Base Rate Advance in the full
     amount of such unpaid Reimbursement Obligation has been or is to be made
     pursuant to SECTION 3.5(a), promptly and unconditionally pay to the Agent
     for the account of such Issuing Bank such Lender's Percentage of the amount
     of such payment which has not been reimbursed (whether directly or through
     a deemed Alternate Base Rate Advance), and the Agent shall promptly pay
     such amount to the Issuing Bank.  The failure of any Lender to make
     available to the Agent for the account of any Issuing Bank its Percentage
     of the unreimbursed amount of any such payment shall not relieve any other
     Lender of its obligation hereunder to make available to the Agent for the
     account of such Issuing Bank its Percentage of the unreimbursed amount of
     any payment on the date such payment is to be made, but no Lender shall be
     responsible for the failure of any other Lender to make available to the
     Agent its Percentage of the unreimbursed amount of any payment on the date
     such payment is to be made.

          (c)  Whenever an Issuing Bank receives a payment on account of a
     Reimbursement Obligation, including any interest thereon, it shall promptly
     pay to the Agent and the Agent shall promptly pay to each Lender which has
     funded its participating interest therein, in immediately available funds,
     an amount equal to such Lender's Percentage thereof.

          (d)  Upon the request of the Agent or any Lender, an Issuing Bank
     shall furnish to such Agent or Lender copies of any Facility B Letter of
     Credit to which that Issuing Bank is party and such other documentation as
     may reasonably be requested by the Agent or Lender.

          (e)  The obligations of a Lender to make payments to the Agent for the
     account of each Issuing Bank with respect to a Facility B Letter of Credit
     shall be absolute,


                                     Page 42
<PAGE>

     unconditional and irrevocable, not subject to any counterclaim, set-off,
     qualification or exception whatsoever and shall be made in accordance with
     the terms and conditions of this Agreement under all circumstances.

     3.7. PAYMENT OF REIMBURSEMENT OBLIGATIONS.

          (a)  The applicable Borrowing Entity agrees to pay to each Issuing
     Bank the amount of all of its Reimbursement Obligations, interest and other
     amounts payable to such Issuing Bank under or in connection with any
     Facility B Letter of Credit of which it is the account party immediately
     when due, irrespective of any claim, set-off, defense or other right which
     the Borrower or any Subsidiary may have at any time against any Issuing
     Bank or any other Person, under all circumstances, including without
     limitation any of the following circumstances:

          (i)  any lack of validity or enforceability of this Agreement or any
               of the other Loan Documents;

         (ii)  the existence of any claim, setoff, defense or other right which
               the applicable Borrowing Entity, the Borrower or any Subsidiary
               may have at any time against a beneficiary named in a Facility B
               Letter of Credit or any permitted transferee of any Facility B
               Letter of Credit (or any Person for whom any such transferee may
               be acting), the Agent, the Issuing Bank, any Lender, or any other
               Person, whether in connection with this Agreement, any Facility B
               Letter of Credit, the transactions contemplated herein or any
               unrelated transactions (including any underlying transactions
               between the Borrower or any Subsidiary and the beneficiary named
               in any Facility B Letter of Credit);

        (iii)  any draft, certificate or any other document presented under the
               Facility B Letter of Credit (and accepted by the Issuing Bank
               without Gross Negligence or willful misconduct) proving to be
               forged, fraudulent, invalid or insufficient in any respect or any
               statement therein being untrue or inaccurate in any respect;

         (iv)  the surrender or impairment of any security for the performance
               or observance of any of the terms of any of the Loan Documents;
               or

          (v)  the occurrence of any Default or Unmatured Default.

          (b)  In the event any payment by or for the account of any Borrowing
     Entity or any Subsidiary received by an Issuing Bank with respect to a
     Facility B Letter of Credit and distributed by the Agent to the Lenders on
     account of their participations is thereafter set aside, avoided or
     recovered from that Issuing Bank in connection with any receivership,
     liquidation, reorganization or bankruptcy proceeding, each Lender which
     received such distribution shall, upon demand by that Issuing Bank,
     contribute such Lender's Percentage of the amount set aside, avoided or
     recovered together with interest at the rate required to be paid by that
     Issuing Bank upon the amount required to be repaid by it.


                                     Page 43
<PAGE>

     3.8. COMPENSATION FOR FACILITY B LETTERS OF CREDIT.

          (a)  The Borrower shall pay to the Agent, for the ratable account of
     the Lenders, based upon the Lenders' respective Percentages, a fee (the
     "Facility B Letter of Credit Fee") with respect to each Facility B Letter
     of Credit that is:

          (i)  a Standby Letter of Credit, for the period from the Issuance Date
               thereof to but including the final expiration date thereof, in a
               per annum amount equal to the product of (A) the average daily
               undrawn amount of such Facility B Letter of Credit during such
               period times (B) either (1) with respect to a Financial Letter of
               Credit, the percentage indicated in SECTION 2.5 as the Applicable
               Margin for the Standby Letter of Credit Fee (Financial) or (2)
               with respect to a Performance Letter of Credit, the percentage
               indicated as the Applicable Margin for the Standby Letter of
               Credit Fee (Performance), and

         (ii)  a Commercial Letter of Credit, in a one-time amount equal to the
               greater of $150 or .25% of the face amount of such Facility B
               Letter of Credit.

     The Facility B Letter of Credit Fee relating to any (i) Standby Letter of
     Credit shall be due and payable in arrears on each Payment Date and, to the
     extent any such fees are then due and unpaid, on the Facility B Termination
     Date and (ii) Commercial Letter of Credit shall be due and payable on the
     Issuance Date.  The Agent shall promptly remit such Facility B Letter of
     Credit Fees, when paid, to the other Lenders in accordance with their
     Percentages thereof.

          (b)  Each Issuing Bank shall have the right to receive solely for its
     own account (i) an issuance fee of .15% of the face amount of each Standby
     Letter of Credit issued by such Issuing Bank, payable by the applicable
     Borrowing Entity on the Issuance Date and (ii) such amounts as it and the
     applicable Borrowing Entity may agree, in writing, to pay to such Issuing
     Bank with respect to issuance fees for any Commercial Letter of Credit.  In
     either case, each Issuing Bank shall be entitled to receive its reasonable
     out-of-pocket costs of issuing and servicing Facility B Letters of Credit.
     In addition, the Borrowing Entity which is the account party on any
     Facility B Letter of Credit shall pay to the Issuing Bank, upon any
     transfer of such Facility B Letter of Credit by the beneficiary thereof to
     a new beneficiary, a transfer commission equal to the greater of $100 or
     .25% of the amount transferred, PROVIDED that such transfer commission
     shall not in any event exceed $750.

     3.9. LETTER OF CREDIT COLLATERAL ACCOUNT.  The Borrower hereby agrees that
it will, until the Facility B Termination Date, maintain a special collateral
account (the "Letter of Credit Collateral Account") at the Agent's office at the
address specified pursuant to Article XIII, in the name of the Borrower but
under the sole dominion and control of the Agent, for the benefit of the
Lenders, and in which the Borrower shall have no interest other than as set
forth in SECTION 8.1.  In addition to the foregoing, the Borrower hereby grants
to the Agent, for the benefit of the Lenders, a security interest in and to the
Letter of Credit Collateral Account and any funds that may hereafter be on
deposit in such account.


                                     Page 44
<PAGE>


                                   ARTICLE IV

                              CONDITIONS PRECEDENT


     4.1. INITIAL ADVANCE AND FACILITY B LETTER OF CREDIT.    The initial
Advance hereunder shall occur no later than September 30, 1996.  The Lenders
shall not be required to make the initial Advance hereunder (if Facility Letters
of Credit shall not previously have been issued) and (if the initial Advance
shall not previously have been made) an Issuing Bank shall not be obligated to
issue any Facility B Letter of Credit hereunder unless the Borrower has
furnished to the Agent with sufficient copies for the Lenders, the following
items (and the date upon which all such items shall have been so furnished is
hereinafter referred to as the "Effective Date"):

     (i)  Copies of the certificate or articles of incorporation, together with
          all amendments, and a certificate of good standing for the Borrower,
          both certified by the appropriate governmental officer in its
          jurisdiction of incorporation.

    (ii)  Copies, certified by the Secretary or Assistant Secretary of the
          Borrower, of its by-laws and of its Board of Directors' resolutions
          authorizing the execution of the Loan Documents to which it is a
          party.

   (iii)  An incumbency certificate, executed by the Secretary or Assistant
          Secretary of the Borrower, which shall identify by name and title and
          bear the signature of the officers of the Borrower authorized to sign
          the Loan Documents and to make borrowings and request Facility B
          Letters of Credit on its behalf hereunder, upon which certificate the
          Agent and the Lenders shall be entitled to rely until informed of any
          change in writing by the Borrower.

    (iv)  A compliance certificate, signed by the President or chief financial
          officer of the Borrower, in substantially the form attached hereto as
          EXHIBIT F.

     (v)  A written opinion of counsel to the Borrower, addressed to the Lenders
          in substantially the form of EXHIBIT D-1.

    (vi)  Borrower Notes payable to the order of each of the Lenders.

   (vii)  Written money transfer instructions, in substantially the form of
          EXHIBIT E hereto, addressed to the Agent and signed by an Authorized
          Officer of the Borrower, together with such other related money
          transfer authorizations as the Agent may have reasonably requested.

  (viii)  The Guaranty executed by each Guarantor.

    (ix)  The insurance certificate described in SECTION 5.18.

     (x)  Such other documents as any Lender or its counsel may have reasonably
          requested.


                                     Page 45
<PAGE>

      4.2.     EACH ADVANCE AND FACILITY B LETTER OF CREDIT.  The Lenders shall
not be required to make any Advance (other than an Advance that, after giving
effect thereto and to the application of the proceeds thereof, does not increase
the aggregate amount of the sum of (x) outstanding Advances and (y) outstanding
Reimbursement Obligations, PROVIDED that, notwithstanding the foregoing
provisions of this parenthetical clause, the conditions set forth below in this
SECTION 4.2 shall (unless waived in accordance with the terms of this Agreement)
be fulfilled in connection with any automatic Alternate Base Rate Advance under
SECTION 3.5) and the Issuing Bank shall not be obligated to issue any Facility B
Letter of Credit, unless on the applicable Borrowing Date or Issuance Date:

     (i)  There exists no Default or Unmatured Default.

    (ii)  The representations and warranties contained in Article V are true and
          correct in all material respects as of such Borrowing Date or Issuance
          Date, as the case may be, except to the extent any such representation
          or warranty is stated to relate solely to an earlier date, in which
          case such representation or warranty shall remain true and correct in
          all material respects on and as of such earlier date.

   (iii)  If such Advance or Facility B Letter of Credit is requested by a
          Borrowing Subsidiary, (a) the representations and warranties of such
          Borrowing Subsidiary contained in Article V-A are true and correct in
          all material respects as of such Borrowing Date or Issuance Date, as
          the case may be, except to the extent any such representation or
          warranty is stated to relate solely to an earlier date, in which case
          such representation or warranty shall remain true and correct in all
          material respects on and as of such earlier date and (b) it has
          complied with the provisions of SECTION 4.3.

    (iv)  All legal matters incident to the making of such Advance or issuance
          of such Facility B Letter of Credit shall be satisfactory to the Agent
          and its counsel (in their reasonable discretion).

     Each Borrowing Notice with respect to each such Advance and each Letter of
Credit Request with respect to each Facility B Letter of Credit shall constitute
a representation and warranty by (a) the Borrower that the conditions contained
in SECTIONS 4.2(i) and (ii) have been satisfied and (b) the applicable Borrowing
Subsidiary if such Advance or Facility B Letter of Credit is requested by it,
that the conditions contained in SECTIONS 4.2(i) and (iii) have been satisfied.

      4.3.     FIRST ADVANCE OR FACILITY B LETTER OF CREDIT TO NEW BORROWING
SUBSIDIARIES.  The obligations of the Lenders to make Advances and an Issuing
Bank to issue Facility B Letters of Credit on the occasion of the first request
for either by each Borrowing Subsidiary are subject to the satisfaction of the
conditions set forth in SECTION 4.2 hereof with respect to such Borrowing
Subsidiary and the Borrower and the following additional conditions:

     (i)  The Agent shall have received, in sufficient number of original
          counterparts for each Lender, an Election to Participate dated on or
          before the date of such first Advance or Facility B Letter of Credit
          issuance (as the case may be) and duly executed by the relevant
          Borrowing Subsidiary and the Borrower.


                                     Page 46
<PAGE>

    (ii)  On or before the date of such first Advance or Facility B Letter of
          Credit issuance (as the case may be), the relevant Borrowing
          Subsidiary shall deliver to the Agent (a) its Borrowing Subsidiary
          Notes, all of which shall be duly executed by such Borrowing
          Subsidiary and dated on or before the date of such Advance, (b) the
          corporate documentation and certificates identified in SECTIONS
          4.1(i)-(iii) with respect to such Borrowing Subsidiary and (c) a
          written opinion addressed to the Lenders, dated the date of such
          Advance or Facility B Letter of Credit issuance (as the case may be),
          of counsel to such Borrowing Subsidiary acceptable to the Agent, such
          opinion to be, in the case of a Domestic Borrowing Subsidiary, in
          substantially the form of EXHIBIT D-2 hereto (or as otherwise approved
          by the Agent), and in the case of a Foreign Borrowing Subsidiary, in
          form and substance acceptable to the Agent.

   (iii)  All legal details and proceedings in connection with the transactions
          contemplated by this Agreement with respect to the relevant Borrowing
          Subsidiary shall be satisfactory to the Lenders (in their reasonable
          discretion), and the Agent shall have received all such counterpart
          originals or certified or other copies of such documents and
          proceedings in connection with such transactions, in form and
          substance satisfactory to the Agent, as the Agent may reasonably
          request.

      4.4.     FACILITY A ADVANCE IN CONNECTION WITH OFFER TO PURCHASE.  The
Lenders shall not be required to make any Facility A Advance in connection with
the Offer to Purchase unless:

     (i)  All requisite regulatory and legal approvals for the Offer to Purchase
          shall have been obtained, including, without limitation, those
          required under the Hart-Scott-Rodino Antitrust Improvements Act of
          1976, as amended, and the rules and regulations thereunder; all
          applicable appeal periods shall have expired and there shall be no
          governmental or judicial action, actual or threatened, that has or
          would have a reasonable likelihood of restraining, preventing or
          imposing burdensome conditions on the transactions contemplated
          hereby.

    (ii)  There shall be no injunction or temporary restraining order which, in
          the judgment of the Agent or the Required Lenders, would prohibit the
          making of such Advance or the purchase of shares pursuant to the Offer
          to Purchase nor shall there be any litigation or administrative
          proceedings or other legal or regulatory developments, actual or
          threatened, which could reasonably be expected to have a Material
          Adverse Effect on the Borrower and its Subsidiaries, taken as a whole
          or on Brenco and its Subsidiaries, taken as a whole.

   (iii)  The amounts and forms of consideration paid by the Acquisition
          Subsidiary for shares of common stock of Brenco in connection with the
          Offer to Purchase shall be acceptable to the Required Lenders and
          shall not exceed $[___] per share.

    (iv)  The terms of the Offer to Purchase shall be acceptable to the Required
          Lenders and the Offer to Purchase shall not be amended without the
          consent of the Required Lenders in any way except (i) to extend the
          expiration date thereof to a date not to exceed the last date which
          would allow the initial funding for the purpose of


                                     Page 47
<PAGE>

          purchasing tendered shares to take place by September 30, 1996,
          PROVIDED that the tender offer price is $[___] per share or less and
          (ii) in immaterial aspects of a type to be agreed upon by the Agent
          and the Borrower.

     (v)  Holders of not less than 66 2/3% of the outstanding shares of common
          stock of Brenco (or such greater percentage of holders as may be
          required under applicable state law or Brenco's certificate of
          incorporation or by-laws to vote for and effect the Merger) shall have
          tendered such shares pursuant to the Offer to Purchase.

    (vi)  The representations and warranties set forth in the Acquisition
          Agreement in connection with the Offer to Purchase shall be accurate
          in all material respects as of the Facility A Borrowing Date, the
          conditions precedent to the purchase of shares set forth in Annex I of
          the Acquisition Agreement and in the Offer to Purchase shall have been
          satisfied and the Required Lenders shall have received an opinion of
          counsel satisfactory to the Required Lenders  in substantially the
          form of EXHIBIT D-3.

   (vii)  The Agent and the Required Lenders shall have received pro forma
          opening financial statements of the Borrower and its consolidated
          Subsidiaries giving effect to the [Brenco Acquisition][purchase of
          shares pursuant to the Offer to Purchase] which must not be materially
          less favorable, in the reasonable judgment of the Agent and the
          Required Lenders, than the projections previously provided to them and
          which must demonstrate, in the reasonable judgment of the Agent and
          the Required Lenders, that the Borrower and its Subsidiaries
          (including, without limitation, the Acquisition Subsidiary) can repay
          their debts and satisfy their respective other obligations as and when
          due, and can comply with the financial covenants acceptable to the
          Agent and the Required Lenders, along with such information as the
          Agent and the Required Lenders may reasonably request to confirm the
          tax, legal and business assumptions made in such pro forma financial
          statements.

  (viii)  The Agent shall have received such corporate documentation pertaining
          to Brenco as the Agent shall reasonably request.

    (ix)  All fees required to be paid to the Agent and the Lenders shall have
          been paid in full.

          4.5. FACILITY A ADVANCE IN CONNECTION WITH MERGER.  The Lenders shall
not be required to make any Facility A Advance in connection with the Merger
unless:

     (i)  The Agent has received evidence in a form satisfactory to the Agent
          and the Required Lenders that the Borrower's directors and Brenco's
          directors or shareholders shall have approved the Merger on terms
          substantially similar to those set forth in the draft dated as of
          [__________] of the Acquisition Agreement dated as of [____________]
          between the Borrower, the Acquisition Subsidiary and Brenco (the
          "Acquisition Agreement"), which terms are acceptable to the Required
          Lenders.

    (ii)  All requisite regulatory and legal approvals for the Merger shall have
          been obtained, including, without limitation, those required under the
          Hart-Scott-Rodino Antitrust


                                     Page 48
<PAGE>

          Improvements Act of 1976, as amended, and the rules and regulations
          thereunder; all applicable appeal periods shall have expired and there
          shall be no governmental or judicial action, actual or threatened,
          that has or would have a reasonable likelihood of restraining,
          preventing or imposing burdensome conditions on the transactions
          contemplated hereby.

   (iii)  There shall be no injunction or temporary restraining order which, in
          the judgment of the Agent or the Required Lenders, would prohibit the
          making of such Advance or the consummation of the Merger nor shall
          there be any litigation or administrative proceedings or other legal
          or regulatory developments, actual or threatened, which could
          reasonably be expected to have a Material Adverse Effect on the
          Borrower and its Subsidiaries, taken as a whole or on Brenco and its
          Subsidiaries, taken as a whole.

   [(iv)  Not more than [____%] of the shareholders of Brenco shall have
          exercised dissenters' rights.]

     (v)  All documents, instruments and agreements necessary to consummate the
          Merger shall have been filed with the applicable secretaries of state
          and no conditions to completion of the Merger shall be unsatisfied.

    (vi)  The representations and warranties set forth in the Acquisition
          Agreement in connection with the Merger shall be accurate in all
          material respects as of the Facility A Borrowing Date, the conditions
          precedent to the Merger set forth in Article VI of the Acquisition
          Agreement shall have been satisfied (except for the condition that
          payment for the shares to be purchased in connection with the Merger
          be made) [and the Required Lenders shall have received an opinion of
          counsel satisfactory to the Required Lenders substantially in the form
          of EXHIBIT D-4].

                                    ARTICLE V

                   REPRESENTATIONS AND WARRANTIES OF BORROWER


     The Borrower represents and warrants to the Lenders that:

      5.1.     CORPORATE EXISTENCE AND STANDING.  Each of the Borrower and its
Subsidiaries is a corporation duly incorporated, validly existing and in good
standing under the laws of its jurisdiction of incorporation and has all
requisite authority to conduct its business as a foreign corporation in each
jurisdiction in which its business is conducted, except where the failure to
have such requisite authority would not have a Material Adverse Effect.

      5.2.     AUTHORIZATION AND VALIDITY.  The Borrower has the corporate power
and authority and legal right to execute and deliver the Loan Documents to which
it is a party and to perform its obligations thereunder.  The execution and
delivery by the Borrower of the Loan Documents and the performance by it of its
obligations thereunder have been duly authorized by proper corporate
proceedings, and the Loan Documents constitute legal, valid and binding
obligations of the Borrower


                                     Page 49
<PAGE>

enforceable against the Borrower in accordance with their respective terms,
except as enforceability may be limited by bankruptcy, insolvency or similar
laws affecting the enforcement of creditors' rights generally.

      5.3.     NO CONFLICT; GOVERNMENT CONSENT.  Neither the execution and
delivery by the Borrower of the Loan Documents to which it is a party, nor the
consummation by the Borrower of the transactions therein contemplated to be
consummated by it, nor compliance by the Borrower with the provisions thereof,
will violate any law, rule, regulation, order, writ, judgment, injunction,
decree or award binding on the Borrower or any of its Subsidiaries or the
Borrower's or any Subsidiary's certificate or articles of incorporation or
by-laws or the provisions of any indenture, instrument or agreement to which the
Borrower or any of its Subsidiaries is a party or is subject, or by which it, or
its Property, is bound, or conflict with or constitute a default thereunder, or
result in the creation or imposition of any Lien in, of or on the Property of
the Borrower or a Subsidiary pursuant to the terms of any such indenture,
instrument or agreement.  No order, consent, approval, license, authorization,
or validation of, or filing, recording or registration with, or exemption by,
any Governmental Agency, is required to authorize, or is required in connection
with the execution, delivery and performance by the Borrower of, or the
legality, validity, binding effect or enforceability against the Borrower of,
any of the Loan Documents, PROVIDED that the Borrower is required to file a copy
of this Agreement and other Loan Documents and to otherwise list or describe
this Agreement and other Loan Documents as part of its periodic filings under
the Exchange Act (although the failure to so file, list or describe this
Agreement or any other Loan Documents would not affect the legality, validity,
binding effect or enforceability of any of the Loan Documents against the
Borrower).

      5.4.     FINANCIAL STATEMENTS.  The consolidated financial statements of
the Borrower and its Subsidiaries as of and for the periods ended January 31,
1996 and for Brenco and its Subsidiaries for the period ended December 31, 1995
heretofore delivered to the Lenders were prepared in accordance with generally
accepted accounting principles in effect on the date such statements were
prepared and fairly present the consolidated financial condition of the Borrower
and its Subsidiaries and Brenco and its Subsidiaries, respectively, at the
respective dates thereof and the consolidated results of their operations for
the periods then ended.

      5.5.     MATERIAL ADVERSE CHANGE.  Since January 31, 1995, there has been
no change in the business, Property, prospects, condition (financial or
otherwise) or results of operations of the Borrower and its Subsidiaries, taken
as a whole, which could reasonably be expected to have a Material Adverse
Effect.  Since December 31, 1994, there has been no change in the business,
Property, prospects, condition (financial or otherwise) or results of operations
of Brenco and its Subsidiaries, taken as a whole, which could reasonably be
expected to have a Material Adverse Effect.  Since the date of the consolidated
pro forma financial statements delivered to the Agent prior to the Closing Date,
there has been no change in the business, Property, prospects, condition
(financial or otherwise), projections, or results of operations of Brenco, the
Borrower and their respective Subsidiaries, taken as a whole, which could
reasonably be expected to have a Material Adverse Effect.

      5.6.     TAXES.  The Borrower and its Subsidiaries have filed all United
States federal tax returns and all other material tax returns which are required
to be filed by them and have paid all


                                     Page 50
<PAGE>

taxes due pursuant to said returns or pursuant to any assessment received by the
Borrower or any of its Subsidiaries, except such taxes, if any, as are being
contested in good faith and as to which adequate reserves have been provided.
As of the date of this Agreement, the United States income tax returns of the
Borrower and its Subsidiaries have been audited by the Internal Revenue Service,
or the time for audit has expired, through the fiscal year ended January 31,
1991.  No tax liens have been filed and no claims are being asserted with
respect to any such taxes.  The charges, accruals and reserves on the books of
the Borrower and its Subsidiaries in respect of any taxes or other governmental
charges are adequate.

      5.7.     LITIGATION AND CONTINGENT OBLIGATIONS.  Except as set forth on
SCHEDULE 3 hereto, there is no litigation, arbitration, governmental
investigation, proceeding or inquiry pending or, to the knowledge of any of
their respective officers, threatened against or affecting the Borrower or any
of its Subsidiaries which could reasonably be expected to have a Material
Adverse Effect.  Other than any liability incident to such litigation,
arbitration or proceedings, as of the date of this Agreement the Borrower has no
material contingent obligations not provided for or disclosed in the financial
statements referred to in SECTION 5.4.

      5.8.     SUBSIDIARIES.  SCHEDULE 4 hereto (as the same may have been
revised in accordance with SECTION 6.16) contains an accurate list of all of the
presently existing Subsidiaries of the Borrower, setting forth their respective
jurisdictions of incorporation and the percentage of their respective capital
stock owned by the Borrower or other Subsidiaries.  All of the issued and
outstanding shares of capital stock of such Subsidiaries have been duly
authorized and issued and are fully paid and non-assessable.

      5.9.     ERISA.  As of December 31, 1995, the Unfunded Liabilities of all
Single Employer Plans do not in the aggregate exceed $1,000,000.  As of December
31, 1995, neither the Borrower nor any other member of the Controlled Group has
incurred any withdrawal liability to Multiemployer Plans.  Each Single Employer
Plan complies in all material respects with all applicable requirements of law
and regulations and, as of the date of this Agreement, no Reportable Event has
occurred with respect to any Single Employer Plan.  As of the date of this
Agreement, neither the Borrower nor any other member of the Controlled Group has
withdrawn from any Plan or initiated steps to do so, and no steps have been
taken to reorganize or terminate any Plan.  As of the date of this Agreement,
neither the Borrower nor any other member of the Controlled Group has been
notified by the sponsor of a Multiemployer Plan that such Multiemployer Plan is
in reorganization or is being terminated, within the meaning of Title IV of
ERISA.

     5.10.     ACCURACY OF INFORMATION.  No information, exhibit or report
furnished by the Borrower or any of its Subsidiaries to the Agent or to any
Lender in connection with the negotiation of, or compliance with, the Loan
Documents contained any misstatement of a material fact or omitted to state a
material fact or any fact necessary to make the statements contained therein not
materially misleading.

     5.11.     REGULATIONS G, T, U, AND X.  The Borrower and its Subsidiaries
are in compliance with all applicable requirements of Regulations G, T, U, and
X.  Margin stock (as defined in Regulation U) constitutes less than 25% of those
assets of the Borrower and its Subsidiaries which are subject to any limitation
on sale, pledge, or other restriction hereunder.


                                     Page 51
<PAGE>

     5.12.     MATERIAL AGREEMENTS.  As of the date of this Agreement, neither
the Borrower nor any Subsidiary is a party to any agreement or instrument or
subject to any charter or other corporate restriction which could reasonably be
expected to have a Material Adverse Effect.  As of the date of this Agreement,
neither the Borrower nor any Subsidiary is in default in the performance,
observance or fulfillment of any of the obligations, covenants or conditions
contained in (i) any agreement to which it is a party, which default could
reasonably be expected to have a Material Adverse Effect or (ii) any agreement
or instrument evidencing or governing Indebtedness.

     5.13.     COMPLIANCE WITH LAWS.  The Borrower and its Subsidiaries have
complied in all material respects with all applicable statutes, rules,
regulations, orders and restrictions of any domestic or foreign government or
Government Agency thereof, having jurisdiction over the conduct of their
respective businesses or the ownership of their respective Property.  Neither
the Borrower nor any Subsidiary has received any notice to the effect that its
operations are not in material compliance with any of the requirements of
applicable federal, state and local environmental, health and safety statutes
and regulations or the subject of any federal or state investigation evaluating
whether any remedial action is needed to respond to a release of any toxic or
hazardous waste or substance into the environment, which non-compliance or
remedial action could reasonably be expected to have a Material Adverse Effect.

     5.14.     OWNERSHIP OF PROPERTIES.  Except as set forth on SCHEDULE 5
hereto, on the date of this Agreement, the Borrower and its Subsidiaries will
have good title, free of all Liens other than those permitted by SECTION 6.17,
to all of the Property and assets reflected in the financial statements as owned
by it.

     5.15.     INVESTMENT COMPANY ACT.  Neither the Borrower nor any Subsidiary
is an "investment company" or a company "controlled" by an "investment company",
within the meaning of the Investment Company Act of 1940, as amended.

     5.16.     PUBLIC UTILITY HOLDING COMPANY ACT.  Neither the Borrower nor any
Subsidiary is a "holding company" or a "subsidiary company" of a "holding
company", or an "affiliate" of a "holding company" or of a "subsidiary company"
of a "holding company", within the meaning of the Public Utility Holding Company
Act of 1935, as amended.

     5.17.     SUBORDINATED INDEBTEDNESS.  The Obligations constitute senior
indebtedness which is entitled to the benefits of the subordination provisions
of all outstanding Subordinated Debt.

     5.18.     INSURANCE.  The certificate signed by the President or Chief
Financial Officer of the Borrower, that attests to the existence and adequacy
of, and summarizes, the property and casualty insurance program carried by the
Borrower and that has been furnished by the Borrower to the Agent and the
Lenders, is complete and accurate in all material respects as of the date of
this Agreement.  This summary includes the insurer's or insurers' name(s),
policy number(s), expiration date(s), amount(s) of coverage, type(s) of
coverage, exclusion(s), and deductibles.  This summary also includes similar
information, and describes any reserves, relating to any self-insurance program
that is in effect.


                                     Page 52
<PAGE>

     5.19.     SOLVENCY.  Immediately following the making of each Loan, if any,
made on the (i) Effective Date and after giving effect to the application of the
proceeds of such Loans, and (ii) date of any Permitted Acquisition and after
giving effect to the application of the proceeds of such Loans,

          (a) the fair value of the assets of the Borrower and the Subsidiaries
     on a consolidated basis, at a fair valuation, will exceed the debts and
     liabilities, subordinated, contingent or otherwise, of the Borrower and the
     Subsidiaries on a consolidated basis;

          (b) the then present fair saleable value of the property and assets of
     the Borrower and the Subsidiaries on a consolidated basis will be greater
     than the amount that will be required to pay the probable liability of the
     Borrower and the Subsidiaries on a consolidated basis on their debts and
     other liabilities, subordinated, contingent or otherwise, as such debts and
     other liabilities become absolute and matured;

          (c) the Borrower and the Subsidiaries on a consolidated basis will be
     able to pay their debts and liabilities, subordinated, contingent or
     otherwise, as such debts and liabilities become absolute and matured; and

          (d) the Borrower and the Subsidiaries on a consolidated basis will not
     have unreasonably small capital with which to conduct the businesses in
     which they are engaged as such businesses are now conducted and are now
     proposed to be conducted.

The Borrower does not intend to, or to permit any of its Subsidiaries to, incur
debts beyond its ability to pay such debts as they mature, taking into account
the timing of and amounts of cash to be received by it or any such Subsidiary
and the timing of the amounts of cash to be payable on or in respect of its
Indebtedness or the Indebtedness of any such Subsidiary.

     5.20.     BENEFITS.  Each of the Borrower and its Subsidiaries will benefit
from the financing arrangement established by this Agreement.  The Agent and the
Lenders have stated and the Borrower acknowledges that, but for the agreement by
each of the Guarantors to execute and deliver the Guaranty, the Agent and the
Lenders would not have made available the credit facilities established hereby
on the terms set forth herein.

                                   ARTICLE V-A

            REPRESENTATIONS AND WARRANTIES OF BORROWING SUBSIDIARIES


     Each Foreign Borrowing Subsidiary represents and warrants to the Lenders as
provided in this Article V-A, and each Domestic Borrowing Subsidiary represents
and warrants to the Lenders as provided in SECTIONS 5A.1, 5A.2, 5A.3, 5A.6, 5A.7
and 5A.8 of this Article V-A that:

      5A.1.    CORPORATE EXISTENCE AND STANDING.  Such Borrowing Subsidiary is a
corporation duly incorporated, validly existing and in good standing under the
laws of its jurisdiction of incorporation and has all requisite authority to
conduct its business in each jurisdiction in which its business is


                                     Page 53
<PAGE>

conducted except where the failure to have such requisite authority would not
have a Material Adverse Effect.

      5A.2.    AUTHORIZATION AND VALIDITY.  Such Borrowing Subsidiary has the
corporate power and authority and legal right to execute and deliver the Loan
Documents to which it is a party and to perform its obligations thereunder.  The
execution and delivery by such Borrowing Subsidiary of the Loan Documents to
which it is a party and the performance by it of its obligations thereunder have
been duly authorized by proper corporate proceedings, and such Loan Documents
constitute legal, valid and binding obligations of such Borrowing Subsidiary
enforceable against such Borrowing Subsidiary in accordance with their
respective terms, except as enforceability may be limited by bankruptcy,
insolvency or similar laws affecting the enforcement of creditors' rights
generally.

      5A.3.    NO CONFLICT; GOVERNMENT CONSENT.  Neither the execution and
delivery by such Borrowing Subsidiary of the Loan Documents to which it is a
party, nor the consummation by it of the transactions therein contemplated to be
consummated by it, nor compliance by such Borrowing Subsidiary with the
provisions thereof will violate any law, rule, regulation, order, writ,
judgment, injunction, decree or award binding on such Borrowing Subsidiary or
any of its Subsidiaries or such Borrowing Subsidiary's or any of its
Subsidiary's certificate or articles of incorporation or by-laws (or similar
documents) or the provisions of any indenture, instrument or agreement to which
such Borrowing Subsidiary or any of its Subsidiaries is a party or is subject,
or by which it, or its Property, is bound, or conflict with or constitute a
default thereunder, or result in the creation or imposition of any Lien in, of
or on the Property of such Borrowing Subsidiary or any of its Subsidiaries
pursuant to the terms of any such indenture, instrument or agreement.  No order,
consent, approval, license, authorization, or validation of, or filing,
recording or registration with, or exemption by, any Governmental Agency is
required to authorize, or is required in connection with the execution, delivery
and performance of, or the legality, validity, binding effect or enforceability
of, any of the Loan Documents.

     5A.4.  FILING.  To ensure the enforceability or admissibility in evidence
of this Agreement and the Borrowing Subsidiary Notes of such Foreign Borrowing
Subsidiary in such Foreign Borrowing Subsidiary's country of organization or
incorporation and country which is its principal place of business (each, a
"Subject Country"), it is not necessary that this Agreement or the Borrowing
Subsidiary Notes of such Foreign Borrowing Subsidiary or any other document be
filed or recorded with any court or other authority in any Subject Country or
that any stamp or similar tax be paid to or in respect of this Agreement or the
Borrowing Subsidiary Notes of such Foreign Borrowing Subsidiary.  The
qualification by any Lender or the Agent for admission to do business under the
laws of any Subject Country does not constitute a condition to, and the failure
to so qualify does not affect, the exercise by any Lender or the Agent of any
right, privilege, or remedy afforded to any Lender or the Agent in connection
with the Loan Documents to which such Foreign Borrowing Subsidiary is a party or
the enforcement of any such right, privilege, or remedy against such Foreign
Borrowing Subsidiary.  The performance by any Lender or the Agent of any action
required or permitted under the Loan Documents will not (i) violate any law or
regulation of any Subject Country or any political subdivision thereof, (ii)
result in any tax or other monetary liability to such party pursuant to the laws
of any such Subject Country or political subdivision or taxing authority thereof
(PROVIDED that, should any such action result in any such tax or other monetary
liability to the Lender or the Agent, the Borrower hereby agrees to indemnify
such Lender or the Agent, as the case may


                                     Page 54
<PAGE>

be, against (x) any such tax or other monetary liability which is not an
Excluded Tax and (y) any increase in an Excluded Tax which results from such
action by such Lender or the Agent and, to the extent the Borrower makes such
indemnification, the incurrence of such liability by the Agent or any Lender
will not constitute a Default) or (iii) violate any rule or regulation of any
federation or organization or similar entity of which such Subject Country is a
member.

     5A.5.  NO IMMUNITY.  Neither such Foreign Borrowing Subsidiary nor any of
its assets is entitled to immunity from suit, execution, attachment or other
legal process.  Such Foreign Borrowing Subsidiary's execution and delivery of
the Loan Documents to which it is a party constitute, and the exercise of its
rights and performance of and compliance with its obligations under such Loan
Documents will constitute, private and commercial acts done and performed for
private and commercial purposes.

     5A.6.     INVESTMENT COMPANY ACT.  Neither such Borrowing Subsidiary nor
any Subsidiary thereof is an "investment company" or a company "controlled" by
an "investment company", within the meaning of the Investment Company Act of
1940, as amended.

     5A.7.     PUBLIC UTILITY HOLDING COMPANY ACT.  Neither such Borrowing
Subsidiary nor any Subsidiary thereof is a "holding company" or a "subsidiary
company" of a "holding company", or an "affiliate" of a "holding company" or of
a "subsidiary company" of a "holding company", within the meaning of the Public
Utility Holding Company Act of 1935, as amended.

     5A.8.     REGULATION U.  Margin stock (as defined in Regulation U)
constitutes less than 25% of those assets of such Borrowing Subsidiary and its
Subsidiaries which are subject to any limitation on sale, pledge, or other
restriction hereunder.


                                   ARTICLE VI

                                    COVENANTS


     During the term of this Agreement, unless the Required Lenders shall
otherwise consent in writing, the Borrower hereby agrees that:

      6.1.     FINANCIAL REPORTING.  The Borrower will maintain, for itself and
each Subsidiary, a system of accounting established and administered such that
consolidated financial statements therefor can be prepared in accordance with
generally accepted accounting principles, and furnish to the Lenders:

     (i)  Within 91 days after the close of each of its fiscal years, an
          unqualified audit report certified by a "Big 6" firm of independent
          certified public accountants or other accountants reasonably
          acceptable to the Lenders, prepared in accordance with generally
          accepted accounting principles on a consolidated and (for itself and
          the Subsidiaries) consolidating basis (consolidating statements need
          not be certified by such accountants), including balance sheets as of
          the end of such period, related profit


                                     Page 55
<PAGE>

          and loss and changes in shareholders' equity statements, and a
          statement of cash flows, accompanied by a certificate of said
          accountants that, in the course of their examination necessary for
          their certification of the foregoing, they have obtained no knowledge
          of any Default or Unmatured Default, or if, in the opinion of such
          accountants, any Default or Unmatured Default shall exist, stating the
          nature and status thereof.

    (ii)  Within 60 days after the close of the first three quarterly periods of
          each of its fiscal years, condensed consolidated and (for itself and
          the Subsidiaries) consolidating unaudited balance sheets as at the
          close of each such period and condensed consolidated and (for itself
          and the Subsidiaries) consolidating unaudited profit and loss and
          changes in shareholders' equity statements and a statement of cash
          flows for the period from the beginning of such fiscal year to the end
          of such quarter, all certified by its President or chief financial
          officer.

   (iii)  Together with the financial statements required hereunder, a
          compliance certificate in substantially the form of EXHIBIT F hereto
          signed by its President or chief financial officer showing the
          calculations necessary to determine compliance with SECTIONS 6.11,
          6.13, 6.18, 6.19, 6.22 and 6.23 of this Agreement and stating that no
          Default or Unmatured Default exists, or if any Default or Unmatured
          Default exists, stating the nature and status thereof.

    (iv)  Within 270 days after the close of each fiscal year, a statement of
          the Unfunded Liabilities of each Single Employer Plan, certified as
          correct by an actuary enrolled under ERISA.

     (v)  As soon as possible and in any event within 20 days after the Borrower
          knows that any Reportable Event has occurred with respect to any Plan,
          a statement, signed by the chief financial officer of the Borrower,
          describing said Reportable Event and the action which the Borrower
          proposes to take with respect thereto.

    (vi)  As soon as possible and in any event within 20 days after receipt by
          the Borrower, a copy of (a) any written notice or claim to the effect
          that the Borrower or any of its Subsidiaries is or may be liable to
          any Person as a result of the release by the Borrower, any of its
          Subsidiaries, or any other Person of any toxic or hazardous waste or
          substance into the environment, and (b) any written notice alleging
          any violation of any federal, state or local environmental, health or
          safety law or regulation by the Borrower or any of its Subsidiaries,
          which, in either case, could reasonably be expected to have a Material
          Adverse Effect.

   (vii)  Promptly upon the furnishing thereof to the stockholders of the
          Borrower, copies of all financial statements, reports and proxy
          statements so furnished.

  (viii)  Promptly upon the filing thereof, copies of all definitive
          registration statements and annual, quarterly or other regular reports
          which the Borrower or any of its Subsidiaries files with the
          Securities and Exchange Commission.


                                     Page 56
<PAGE>

    (ix)  As soon as available, but in any event within 90 days after the
          beginning of each fiscal year of the Borrower, a copy of the plan and
          forecast (including a projected consolidated balance sheet, income
          statement and funds flow statement) of the Borrower for such fiscal
          year.

     (x)  Such other information (including non-financial information) as the
          Agent or any Lender may from time to time reasonably request
          including, without limitation, a copy of any management letter
          prepared by the Borrower's certified public accountants in connection
          with their examination of the Borrower's annual audited financial
          statements.

      6.2.     USE OF PROCEEDS.  The Acquisition Subsidiary will use the
proceeds of the Facility A Advances to provide funds for the purchase of the
shares of common stock of Brenco tendered in connection with the Offer to
Purchase, for the purchase of the shares of common stock of Brenco to be
purchased in connection with the Merger and for the payment of expenses incurred
in connection with the Brenco Acquisition.  The Borrower will, and will cause
each Subsidiary to, use the Facility B Letters of Credit and the proceeds of the
Facility B Advances for general corporate purposes (including Investments,
Acquisitions and Indebtedness refinancings permitted hereunder), to repay
outstanding Advances and Reimbursement Obligations, to provide funds for the
purchase of Brenco pursuant to the Brenco Acquisition and for the payment of
expenses incurred in connection with the Brenco Acquisition.  The Borrower will
not, nor will it permit any Subsidiary to, use any of the Facility B Letters of
Credit or the proceeds of the Advances to purchase or carry any "margin stock"
(as defined in Regulation U) except in compliance with Regulation X.

      6.3.     NOTICE OF DEFAULT.  The Borrower will give prompt notice in
writing to the Lenders of the occurrence of any Default or Unmatured Default and
of any other development, financial or otherwise, which could reasonably be
expected to have a Material Adverse Effect.

      6.4.     CONDUCT OF BUSINESS.  The Borrower will, and will cause each
Subsidiary to, (i) carry on and conduct its business in substantially the same
manner and in substantially the same fields of enterprise as it is presently
conducted (it being understood that its fields of enterprise means the
manufacturing of industrial products) and (other than sales of Subsidiaries and
mergers of the Borrower or any Subsidiary which are otherwise permitted under
this Agreement) do all things necessary to remain duly incorporated, validly
existing and in good standing as a domestic corporation in its jurisdiction of
incorporation and maintain (where material) all requisite authority to conduct
its business in each jurisdiction in which its business is conducted.

      6.5.     TAXES.  The Borrower will, and will cause each Subsidiary to, pay
when due all taxes, assessments and governmental charges and levies upon it or
its income, profits or Property, except those which are being contested in good
faith by appropriate proceedings and with respect to which adequate reserves
have been set aside.

      6.6.     INSURANCE.  The Borrower will, and will cause each Subsidiary to,
maintain with financially sound and reputable insurance companies insurance on
all their material, insurable Property in such amounts and covering such risks
as is consistent with sound business practice, and the Borrower will furnish to
any Lender upon request full information as to the insurance carried.


                                     Page 57
<PAGE>

      6.7.     COMPLIANCE WITH LAWS.  The Borrower will, and will cause each
Subsidiary to, comply in all material respects with all laws, rules,
regulations, orders, writs, judgments, injunctions, decrees or awards to which
it may be subject and obtain and maintain in effect all consents, licenses,
permits, orders or other governmental approvals necessary in order to perform
its obligations under the Loan Documents to which it is a party.

      6.8.     MAINTENANCE OF PROPERTIES.  The Borrower will, and will cause
each Subsidiary to, do all things reasonably necessary to maintain, preserve,
protect and keep its used and useful Property in good repair, working order and
condition (ordinary wear and tear excepted), and make all reasonably necessary
and proper repairs, renewals and replacements so that its business carried on in
connection therewith may be properly conducted at all times.

      6.9.     INSPECTION.  The Borrower will, and will cause each Subsidiary
to, permit the Lenders, by their respective representatives and agents, to
inspect any of the Property, corporate books and financial records of the
Borrower and each Subsidiary, to examine and make copies of the books of
accounts and other financial records of the Borrower and each Subsidiary, and to
discuss the affairs, finances and accounts of the Borrower and each Subsidiary
with, and to be advised as to the same by, their respective officers at such
reasonable times and intervals as the Lenders may designate upon reasonable
notice to the Borrower.  Any information, copies or records obtained by the
Lenders or any of their respective representatives or agents under this
Agreement that is proprietary or confidential in nature will be maintained in
accordance with the terms of SECTION 9.18.

     6.10.     DIVIDENDS.  The Borrower will not, nor will it permit any
Subsidiary to, declare or pay any dividends on its capital stock (other than
dividends payable in its own capital stock) or redeem, repurchase or otherwise
acquire or retire for value any of its then outstanding capital stock at any
time at which a Default or Unmatured Default exists or would exist after giving
effect to such dividend, redemption, repurchase, acquisition or retirement;
PROVIDED, HOWEVER, that any Subsidiary may at any time declare and pay dividends
to, and redeem, repurchase or otherwise acquire or retire for value its capital
stock held by, the Borrower or a Wholly-Owned Subsidiary.

     6.11.     INDEBTEDNESS.  The Borrower will not, nor will it permit any
Subsidiary to, create, incur or suffer to exist any Indebtedness, except:

     (i)  The Obligations.

    (ii)  Indebtedness existing on the date hereof and described in SCHEDULE 5
          hereto.

   (iii)  Financial Guaranties.

    (iv)  The Guaranty.

     (v)  Contingent Obligations (a) arising from endorsements of instruments
          for deposit or collection in the ordinary course of business, (b) in
          respect of Indebtedness of the types described in clauses (i) through
          (v) of the definition thereof which Indebtedness is otherwise
          permitted hereunder (including, without limitation, under clause (vii)
          of


                                     Page 58
<PAGE>

          this SECTION 6.11) and (c) with respect to Letters of Credit coming
          within clauses (i) and (ii) of the definition of "LC Contingent
          Reimbursement Value".

    (vi)  Indebtedness of the Borrower to any Subsidiary, of any Subsidiary to
          the Borrower or of any Subsidiary to any other Subsidiary, provided,
          however, that only the Borrower may lend to Foreign Subsidiaries.

   (vii)  Additional Indebtedness not to exceed $20,000,000 in the aggregate.

     6.12.     MERGER.  The Borrower will not, nor will it permit any Subsidiary
to, merge or consolidate with or into any other Person, except (i) that a
Subsidiary may merge with and into the Borrower or a Wholly-Owned Subsidiary,
(ii) pursuant to a Permitted Acquisition and (iii) in the case of a Subsidiary,
in order to effect a sale or other disposition of assets permitted under SECTION
6.13.

     6.13.     SALE OF ASSETS.  (a)  The Borrower will not, nor will it permit
any Subsidiary to, lease, sell or otherwise dispose of its Property, to any
other Person except for (i) leases, sales and other dispositions (as used in
this SECTION 6.13, each a "disposition") of inventory in the ordinary course of
business and (ii) dispositions (in each case so long as no Default or Unmatured
Default exists or would exist after giving effect thereto) of:

     (x)  Property which comprises substantially all of the assets of an entire
          business entity, product line or manufacturing facility, PROVIDED that
          the value of all Property so disposed of pursuant to this clause (x),
          based upon the Borrower's financial statements most recently delivered
          prior to any such disposition, does not exceed $46,000,000, PROVIDED
          FURTHER that this clause (x) may only be relied upon if the Borrower
          has demonstrated to the Lenders that no Default would have existed
          under the Operating Cash Flow to Senior Debt covenant contained in
          SECTION 6.22.3 (as of the most recently ended fiscal quarter for which
          the Borrower's financial statements have been delivered pursuant to
          SECTION 6.1), calculated by assuming that the contemplated disposition
          had taken place at the beginning of the twelve (12) month calculation
          period related to such covenant;

     (y)  any Property other than the type covered by clause (x), PROVIDED that
          the value of all Property so disposed of pursuant to this clause (y),
          based upon the Borrower's financial statements most recently delivered
          prior to any such disposition, does not exceed the greater of (I)
          $[_____________] and (II) 10% of the Borrower's Net Assets as
          reflected on those audited financial statements of the Borrower
          delivered pursuant to SECTION 6.1(i) showing the highest level of Net
          Assets of any such financial statements delivered pursuant to such
          Section during the term of this Agreement; and

     (z)  any Property, PROVIDED that, effective on the date of such
          disposition, the Borrower permanently reduces the Aggregate Commitment
          by an amount at least equal to the value of the proceeds (net of
          reasonable expenses of disposition) of such disposition (and, in
          connection with such reduction of the Aggregate Commitment, prepays
          any Advances or cash collateralizes any Facility B Letters of Credit
          as necessary to keep


                                     Page 59
<PAGE>

          the aggregate principal amount of outstanding Advances and Facility B
          Letter of Credit Obligations from exceeding the Aggregate Commitment
          after giving effect to such reduction).

     (b)  The Agent and Lenders hereby acknowledge and agree that (i) the
Property that may be sold or otherwise disposed of under the foregoing SECTION
6.13(a) includes shares of capital stock of a Subsidiary, and (ii) in the event
of such a sale or other disposition of capital stock of a Subsidiary permitted
under SECTION 6.13(a) that results in such Person no longer being a Subsidiary
they shall take such actions as may be reasonably requested by the Borrower to
thereupon release and discharge such former Subsidiary from all liabilities and
obligations under any Loan Document to which it may then be a party.

     6.14.     SALE OF ACCOUNTS.  The Borrower will not, nor will it permit any
Subsidiary to, sell or otherwise dispose of any notes receivable or accounts
receivable, with or without recourse, except (i) as part of a transaction
permitted under SECTIONS 6.12 or 6.13, or (ii) in any other transaction or
series of transactions provided that the aggregate amount of such notes and
accounts receivable sold pursuant to this clause (ii) in any fiscal year of the
Borrower does not exceed $2,000,000.

     6.15.     SALE AND LEASEBACK.  The Borrower will not, nor will it permit
any Subsidiary to, sell or transfer any of its Property in order to concurrently
or subsequently lease as lessee such or similar Property.

     6.16.     INVESTMENTS AND ACQUISITIONS.  The Borrower will not, nor will it
permit any Subsidiary to,

          (a) make or suffer to exist any Investments (including without
     limitation, loans and advances to, and other Investments in, Subsidiaries),
     or commitments therefor, or to create any Subsidiary or to become or remain
     a partner in any partnership or joint venture, except:

     (i)  Marketable Securities.

    (ii)  Investments in Subsidiaries and other Investments (in each case) in
          existence on the date hereof and described in SCHEDULE 4 hereto.

   (iii)  Investments in Subsidiaries and non-Subsidiary Affiliates made after
          the date hereof; PROVIDED, HOWEVER, that (x) only the Borrower may
          make loans or advances to Foreign Subsidiaries and to foreign non-
          Subsidiary Affiliates and (y) any loans or advances to any domestic
          non-Subsidiary Affiliates must be evidenced by promissory notes which
          are pledged to the Agent, for the benefit of the Lenders, pursuant to
          a pledge agreement satisfactory in form and substance to the Agent.

    (iv)  At any time that (I) Loans outstanding do not exceed $5,000,000 in
          aggregate principal amount, any Investments in any debt instruments or
          stock of any Person, and (II), at any time that Loans outstanding
          exceed $5,000,000 in aggregate principal amount, Investments of up to
          (x) $10,000,000 in debt instruments or stock of any Person with a long
          term debt rating of BBB or higher by S&P or Baa or higher by


                                     Page 60
<PAGE>

          Moody's plus (y) an additional $5,000,000 in debt instruments or stock
          of any Person permitted under the foregoing clause (x) or (1) with a
          long term debt rating of less than BBB by S&P and Baa by Moody's or
          (2) that is not rated.

     (v)  Investments, consisting of the capital stock of new Subsidiaries (a)
          acquired pursuant to a Permitted Acquisition, (b) created for the
          purpose of facilitating a Permitted Acquisition or (c) created
          pursuant to any reorganization by the Borrower of its consolidated
          assets not otherwise prohibited hereunder, PROVIDED that (i) the
          Borrower will cause any such new Domestic Subsidiary created pursuant
          to a reorganization described in this clause (c) to deliver to the
          Agent, prior to the transfer of any assets to such new Domestic
          Subsidiary, an executed counterpart to become a Guarantor under the
          Guaranty, in the form of EXHIBIT G attached hereto, and appropriate
          corporate resolutions authorizing such execution and delivery and (ii)
          upon the creation of any such new Domestic Subsidiary, the Borrower
          shall deliver to the Lenders a revised SCHEDULE 4 listing such new
          Subsidiary, and such revised Schedule shall replace the old Schedule
          and shall be deemed to have become part of the Agreement.

   (vii)  Investments consisting of notes received as part of the sales proceeds
          of asset sales permitted pursuant to the terms of SECTION 6.13.

  (viii)  Investments in other Persons represented by Financial Guaranties and
          other Contingent Obligations permitted under SECTION 6.11.

    (ix)  Investments held by a Subsidiary which Subsidiary is acquired through
          a Permitted Acquisition, PROVIDED that such Investments existed at the
          date of such Permitted Acquisition, were not created as part of or in
          anticipation of such Permitted Acquisition and do not, in the
          aggregate, exceed $5,000,000 at any one time outstanding.

          (b) make any Acquisition of any Person, except for Permitted
     Acquisitions.    Upon the consummation of any Permitted Acquisition, (i)
     the Borrower may deliver to the Lenders a revised SCHEDULE 4 listing any
     new Subsidiary, if any, formed in connection with or acquired pursuant to
     such Permitted Acquisition (each, a "New Subsidiary"), and such revised
     Schedule shall replace the old Schedule and shall be deemed to have become
     part of the Agreement and (ii) the Borrower shall or shall cause any such
     New Subsidiary that is not a Foreign Subsidiary to deliver to the Agent,
     promptly but in any event within 15 days, an executed counterpart to become
     a Guarantor under the Guaranty, in the form of EXHIBIT G attached hereto,
     and appropriate corporate resolutions authorizing such execution and
     delivery.

     6.17.     LIENS.  The Borrower will not, nor will it permit any Subsidiary
to, create, incur, or suffer to exist any Lien in, of or on the Property of the
Borrower or any of its Subsidiaries, except:

     (i)  Liens for taxes, assessments or governmental charges or levies on its
          Property if the same shall not at the time be delinquent or thereafter
          can be paid without penalty, or


                                     Page 61
<PAGE>

          are being contested in good faith and by appropriate proceedings and
          for which adequate reserves in accordance with generally accepted
          accounting principles shall have been set aside.

    (ii)  Liens imposed by law, such as bankers' setoff rights, carriers',
          warehousemen's and mechanics' liens and other similar statutory or
          common law liens arising in the ordinary course of business which
          secure payment of obligations not more than 60 days past due, or are
          being contested in good faith and by appropriate proceedings and for
          which adequate reserves in accordance with generally accepted
          accounting principles shall have been set aside.

   (iii)  Liens arising out of pledges, bonds or deposits under worker's
          compensation laws, unemployment insurance, old age pensions, or other
          social security or retirement benefits or similar legislation and
          deposits securing obligations for self-insurance arrangements in
          connection with any of the foregoing.

    (iv)  Easements, rights of way, building restrictions, minor defects or
          irregularities in title and such other encumbrances or charges against
          real property as are of a nature generally existing with respect to
          properties of a similar character and which do not in any material and
          adverse way affect the marketability of the same or interfere with the
          use thereof in the business of the Borrower or the Subsidiaries, and
          minor defects or irregularities in title to personal property as are
          of a nature generally existing with respect to properties of a similar
          character and which do not in any material and adverse way affect the
          marketability of the same or interfere with the use thereof in the
          business of the Borrower or the Subsidiaries.

     (v)  Liens existing on the date hereof and described in SCHEDULE 5 hereto.

    (vi)  Liens which relate to Industrial Revenue Bond financings existing at
          entities acquired as a Permitted Acquisition.

   (vii)  Liens on the Property of any Foreign Subsidiary incurred in connection
          with Indebtedness permitted pursuant to SECTION 6.11(vii).

  (viii)  Deposits to secure the performance of bids, trade contracts,
          government contracts, leases, statutory and warranty obligations,
          surety, appeal and performance bonds and other obligations of a like
          nature incurred in the ordinary course of business, PROVIDED that the
          aggregate amount of all appeal bonds in connection with which Liens
          exist on Property of the Borrower or its Subsidiaries shall not exceed
          $2,000,000 at any one time outstanding.

    (ix)  Liens arising under Capitalized Leases and other leases permitted
          under this Agreement (under which the Borrower or any Subsidiary is
          lessee).

     (x)  Leases and subleases granted to other Persons in the ordinary course
          of business.


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<PAGE>

    (xi)  Liens in favor of customs and revenue authorities arising under law to
          secure payments of customs duties in connection with the importation
          of goods and incurred in the ordinary course of business.

   (xii)  Any attachment or judgment Liens not giving rise to a Default.

  (xiii)  Liens granted in favor of the Agent and the Lenders under any of the
          Loan Documents.

   (xiv)  (a) Purchase money Liens incurred in the ordinary course of business,
          (b) Liens securing Indebtedness of any Subsidiary which Subsidiary is
          acquired after the date of this Agreement provided that such
          Indebtedness is not incurred in contemplation of the acquisition by
          the Borrower or any Subsidiary of its interest in such Subsidiary, and
          (c) Liens incurred in order to finance the purchase by the Borrower or
          any Subsidiary of equity interests in any Subsidiary or Affiliate
          after the date of this Agreement in favor of the seller of such equity
          interests to secure the purchase price thereof, PROVIDED that the
          principal amount of the obligations secured by all Liens permitted
          under this clause (xiv) shall not in the aggregate exceed $5,000,000
          at any time outstanding.

     6.18.     FIXED ASSET EXPENDITURES.  The Borrower will not, nor will it
permit any Subsidiary to, expend, or be committed to expend, as of any date of
determination, on a cumulative basis from and after the Effective Date, an
amount for the acquisition of fixed assets that, when expended, will exceed the
sum of (i) $5,000,000 PLUS (ii) 150% of the Borrower's cumulative depreciation
expense, in the aggregate for the Borrower and its Subsidiaries.

     6.19.     RENTALS.  The Borrower will not, nor will it permit any
Subsidiary to, create, incur or suffer to exist obligations for Rentals in
excess of $4,000,000 during any one fiscal year on a non-cumulative basis  in
the aggregate for the Borrower and its Subsidiaries.

     6.20.     AFFILIATES.  The Borrower will not, and will not permit any
Subsidiary to, enter into any transaction (including, without limitation, the
purchase or sale of any Property or service) with, or make any payment or
transfer to, any Affiliate except for (i) transactions involving only the
Borrower and/or one or more Domestic Subsidiaries or Wholly-Owned Subsidiaries,
(ii) transactions which are pursuant to the reasonable requirements of the
Borrower's or such Subsidiary's business, are transacted upon fair and
reasonable terms and have a net effect on the consolidated financial position of
the Borrower and its Subsidiaries no less favorable than if the Borrower or such
Subsidiary had entered into such transaction with an unrelated third-party
(rather than with such Affiliate) on market terms and (iii) compensatory
arrangements with officers, directors and employees (including, without
limitation, the payment of dividends or making of loans to or investments in,
such officers, directors and employees) not otherwise prohibited under this
Agreement.

     6.21.     SUBORDINATED INDEBTEDNESS.  The Borrower will not, and will not
permit any Subsidiary to, (i) make any amendment or modification which would in
any way disadvantage the Lenders to the indenture, note or other agreement
evidencing or governing any Subordinated


                                     Page 63
<PAGE>

Indebtedness, or (ii) directly or indirectly voluntarily prepay, defease or in
substance defease, purchase, redeem, retire or otherwise acquire for value
(except in exchange for equity of the Borrower), any Subordinated Indebtedness
(other than the Subordinated Debt, which may be prepaid, defeased, purchased,
redeemed, retired or otherwise acquired at any time, SO LONG AS no Default or
Unmatured Default exists or would exist after giving effect thereto).

     6.22.     FINANCIAL COVENANTS.  The Borrower shall maintain, on a
consolidated basis with its Subsidiaries, each of the following financial
covenants, each calculated in accordance with Agreement Accounting Principles:

          6.22.1. INTEREST COVERAGE RATIO.  As of the end of each fiscal
     quarter, an Interest Coverage Ratio greater than or equal to [____ to 1.0].

          6.22.2.  LEVERAGE RATIO.  At all times, a Leverage Ratio not exceeding
     [____ to 1.0].

          6.22.3.  OPERATING CASH FLOW TO SENIOR DEBT.  As of the end of each
     fiscal quarter, a ratio of (i) Operating Cash Flow for such fiscal quarter
     and the three immediately preceding fiscal quarters to (ii) Senior Debt as
     of the end of such fiscal quarter, greater than or equal to .20 to 1.0.

          6.22.4. NET WORTH.  The Borrower shall maintain, on a consolidated
     basis, at all times a Net Worth (PLUS any non-cash charges and expenses
     related to the disposition of businesses or entire facilities or to the
     revaluation of intangibles and MINUS any cash payments with respect to any
     non-cash charges and expenses related to the disposition of businesses or
     entire facilities previously taken into account) that is greater than or
     equal to [the sum of (i) $[______________] PLUS (ii) 50% of the Borrower's
     quarterly Net Income, if positive, for each fiscal quarter ending after the
     Effective Date PLUS (iii) repurchases of Subordinated Debt PLUS (iv) (or
     MINUS, as appropriate) the amount necessary to eliminate the effects of
     cumulative translation adjustments, but only to the extent included in Net
     Worth.]

     6.23.     FOREIGN ASSETS.  The aggregate net assets of all Foreign
Subsidiaries and foreign non-Subsidiary Affiliates of the Borrower, as shown on
the most recent balance sheet of the Borrower delivered pursuant to SECTION 6.1,
(i) shall not exceed $52,000,000 at any time during the term of this Agreement,
and (ii) shall not exceed $40,000,000 at any time prior to July __, 1997.

     6.24.     RATE HEDGING OBLIGATIONS.  The Borrower shall not and shall not
permit any of its Subsidiaries to enter into any interest rate, commodity or
foreign currency exchange, swap, collar, cap or similar agreements other than
interest rate, foreign currency or commodity exchange, swap, collar, cap or
similar agreements pursuant to which the Borrower has hedged its actual interest
rate, foreign currency or commodity exposure (such hedging agreements are
sometimes referred to herein as "INTEREST RATE AGREEMENTS").

     [6.25.    INTEREST RATE AGREEMENTS.  Within 45 days after the date hereof,
the Borrower shall enter into, and shall thereafter maintain, Interest Rate
Agreements on terms and with counterparties determined by the Borrower and
reasonably acceptable to the Agent by which the Borrower is protected against
increases in interest rates from and after the date of such contracts as to a
notional


                                     Page 64
<PAGE>

amount to be determined by the Agent after consultation with the Borrower, but
which notional amount shall not be required to exceed [___] percent (__%) of the
Aggregate Facility A Commitment.]

     6.26.  CONSUMMATION OF MERGER.  If as a result of the Offer to Purchase,
the Acquisition Subsidiary, the Borrower, and any Affiliates of the Borrower
shall beneficially own more than ninety percent (90%) of the outstanding shares
of Brenco, the Borrower and the Acquisition Subsidiary shall consummate the
Merger as soon as reasonably possible but in no event later than [ ___] business
days after the purchase of shares pursuant to the Offer to Purchase.


                                   ARTICLE VII

                                    DEFAULTS


     The occurrence of any one or more of the following events shall constitute
a Default:

      7.1.     Any representation or warranty made or deemed made by or on
behalf of the Borrower or any of its Subsidiaries to the Lenders or the Agent
under or in connection with this Agreement, any Loan, any Facility B Letter of
Credit, or any certificate or information delivered in connection with this
Agreement or any other Loan Document shall be materially false on the date as of
which made.

      7.2.     Nonpayment of principal of any Note when due, nonpayment of any
Reimbursement Obligation when due or nonpayment of interest upon any Note or of
any fee or other obligation under any of the Loan Documents within five days
after the same becomes due.

      7.3.     The breach by the Borrower of any of the terms or provisions of
SECTION 6.2, 6.3 or 6.10-6.23, inclusive.

      7.4.     The breach by any Borrowing Entity (other than a breach which
constitutes a Default under SECTION 7.1, 7.2 OR 7.3) of any of the terms or
provisions of this Agreement which is not remedied within ten days after written
notice from the Agent.

      7.5.     Failure of the Borrower or any of its Subsidiaries to pay any
Indebtedness in excess of $2,000,000 in the aggregate when due; or the default
by the Borrower or any of its Subsidiaries in the performance of any term,
provision or condition contained in any agreement under which any Indebtedness
in excess of $2,000,000 in the aggregate was created or is governed, or any
other event shall occur or condition exist, the effect of which is to cause, or
to permit the holder or holders of such Indebtedness in excess of $2,000,000 in
the aggregate to cause, such Indebtedness to become due prior to its stated
maturity; or any Indebtedness of the Borrower or any of its Subsidiaries in
excess of $2,000,000 in the aggregate shall be declared to be due and payable or
required to be prepaid (other than by a regularly scheduled payment) prior to
the stated maturity thereof; or the Borrower or any of its Subsidiaries shall
become generally unable to, or shall admit in writing its inability to, pay its
debts generally as they become due.


                                     Page 65
<PAGE>

      7.6.     The Borrower or any of its Subsidiaries shall (i) have an order
for relief entered with respect to it under the Federal bankruptcy laws as now
or hereafter in effect, (ii) make an assignment for the benefit of creditors,
(iii) apply for, seek, consent to, or acquiesce in, the appointment of a
receiver, custodian, trustee, examiner, liquidator or similar official for it or
any portion of its Property that constitutes a Substantial Portion, (iv)
institute any proceeding seeking an order for relief under the Federal
bankruptcy laws as now or hereafter in effect or seeking to adjudicate it a
bankrupt or insolvent, or seeking dissolution, winding up, liquidation,
reorganization, arrangement, adjustment or composition of it or its debts under
any law relating to bankruptcy, insolvency or reorganization or relief of
debtors or fail to file an answer or other pleading denying the material
allegations of any such proceeding filed against it, (v) take any corporate
action to authorize or effect any of the foregoing actions set forth in this
SECTION 7.6 or (vi) fail to contest in good faith any appointment or proceeding
described in SECTION 7.7.

      7.7.     Without the application, approval or consent of the Borrower or
any of its Subsidiaries, a receiver, trustee, examiner, liquidator or similar
official shall be appointed for the Borrower or any of its Subsidiaries or any
portion of its Property that constitutes a Substantial Portion, or a proceeding
described in SECTION 7.6(iv) shall be instituted against the Borrower or any of
its Subsidiaries and such appointment continues undischarged or such proceeding
continues undismissed or unstayed for a period of 60 consecutive days.

      7.8.     The Borrower or any of its Subsidiaries shall fail within 45 days
of its final entry to pay, bond or otherwise discharge any judgment or order for
the payment of money in excess of $2,000,000, which is not stayed on appeal or
otherwise being appropriately contested in good faith.

     7.9. The Unfunded Liabilities of all Single Employer Plans shall exceed in
the aggregate $15,000,000 or any Reportable Event shall occur in connection with
any Single Employer Plan that reasonably could be expected to result in
liability of the Borrower or any of its Subsidiaries to the PBGC or to such Plan
in excess of $2,000,000.

     7.10.     The Borrower or any other member of the Controlled Group shall
have been notified by the sponsor of a Multiemployer Plan that it has incurred
withdrawal liability to such Multiemployer Plan in an amount which, when
aggregated with all other amounts required to be paid to Multiemployer Plans by
the Borrower or any other member of the Controlled Group as withdrawal liability
(determined as of the date of such notification), exceeds $2,000,000 or requires
payments exceeding $1,000,000 per annum.

     7.11.     The Borrower or any of its Subsidiaries shall be the subject of
any proceeding or investigation pertaining to the release by the Borrower or any
of its Subsidiaries, or any other Person of any toxic or hazardous waste or
substance into the environment, or any violation of any federal, state or local
environmental, health or safety law or regulation, which, in either case, could
reasonably be expected to have a Material Adverse Effect.

     7.12.     Any Change in Control shall occur.

     7.13.     The occurrence of any "default", as defined in any Loan Document
(other than this Agreement or the Notes) or the breach of any of the terms or
provisions of any Loan Document


                                     Page 66
<PAGE>

(other than this Agreement or the Notes), which default or breach continues
beyond any period of grace therein provided.

     7.14.     Any Guaranty shall fail to remain in full force or effect (except
as expressly permitted by its terms or as contemplated pursuant to a transaction
in compliance with SECTION 6.13 which results in a release of the Guarantor from
its liability under the Guaranty as described in SECTION 6.13(b)) or any action
shall be taken by the Borrower or any Subsidiary to discontinue or to assert the
invalidity or unenforceability of any Guaranty (except as expressly permitted by
its terms or as contemplated pursuant to a transaction in compliance with
SECTION 6.13 which results in a release of the Guarantor from its liability
under the Guaranty as described in SECTION 6.13(b)), or any Guarantor shall fail
to comply with any of the terms or provisions of any Guaranty to which it is a
party, or any Guarantor denies that it has any further liability under any
Guaranty to which it is a party, or gives notice to such effect.


                                  ARTICLE VIII

                 ACCELERATION, WAIVERS, AMENDMENTS AND REMEDIES


      8.1.     ACCELERATION.  If any Default described in SECTION 7.6 or 7.7
occurs with respect to the Borrower, the obligations of the Lenders to make
Loans and of an Issuing Bank to issue Facility B Letters of Credit hereunder
shall automatically terminate and the Obligations shall immediately become due
and payable without any election or action on the part of the Agent or any
Lender.  If any other Default occurs and is continuing, the Required Lenders may
terminate or suspend the obligations of the Lenders to make Loans and of an
Issuing Bank to issue Facility B Letters of Credit hereunder, or declare the
Obligations to be due and payable, or both, whereupon the Obligations shall
become immediately due and payable, without presentment, demand, protest or
notice of any kind, all of which each Borrowing Entity hereby expressly waives.
In addition to the foregoing following the occurrence and during the continuance
of a Default, so long as any Facility B Letter of Credit has not been fully
drawn and has not been canceled or expired by its terms, upon demand by the
Agent the Borrower shall deposit in the Letter of Credit Collateral Account cash
in an amount equal to the aggregate undrawn face amount of all outstanding
Facility B Letters of Credit and all fees and other amounts due or which may
become due with respect thereto.  The Borrower shall have no control over funds
in the Letter of Credit Collateral Account, which funds shall be invested by the
Agent from time to time in its discretion in certificates of deposit of First
Chicago having a maturity not exceeding thirty days.  Such funds shall be
promptly applied by the Agent to reimburse any Issuing Bank for drafts drawn
from time to time under the Facility B Letters of Credit.  Such funds, if any,
remaining in the Letter of Credit Collateral Account following the payment of
all Obligations in full shall, unless the Agent is otherwise directed by a court
of competent jurisdiction, be promptly paid over to the Borrower.

      8.2.     AMENDMENTS.  Subject to the provisions of this Article VIII, the
Required Lenders (or the Agent with the consent in writing of the Required
Lenders) and the Borrowing Entities may enter into agreements supplemental
hereto for the purpose of amending, adding, deleting or modifying any provisions
to the Loan Documents or waiving or changing in any manner the rights of the
Agent, the


                                     Page 67
<PAGE>

Lenders, the Borrowing Entities or the Guarantors hereunder or thereunder or
waiving any Default or Unmatured Default hereunder or thereunder; PROVIDED,
HOWEVER, that no such supplemental agreement shall, without the consent of each
Lender affected thereby:

     (i)  Extend the maturity of any Loan or Note or forgive all or any portion
          of the principal amount thereof, or reduce the rate or extend the time
          of payment of interest or fees thereon (except as permitted under
          SECTION 2.11).

    (ii)  Reduce the percentage specified in the definition of Required Lenders.

   (iii)  Reduce the amount or extend the payment date for, the mandatory
          payments required under SECTION 2.7, or increase the amount of the
          Commitment of any Lender hereunder, or permit any Borrowing Entity to
          assign its rights under this Agreement.

    (iv)  Amend (a) this SECTION 8.2, (b) SECTION 3.2, 7.6 or 7.7 or (c) Article
          XIV.

     (v)  Increase the maximum drawable amount or extend the expiration date of
          any outstanding Facility B Letter of Credit (except as expressly
          permitted by its terms) or reduce the principal amount of or extend
          the time of payment of any Reimbursement Obligation or fee associated
          with any Facility B Letter of Credit.

    (vi)  Release any Guarantor of any of the Obligations (except as
          contemplated by and in accordance with SECTION 6.13(b)) or, except as
          provided in any pledge agreement which may be entered into in
          connection herewith, release all or substantially all of the
          Collateral (as defined therein) or any other collateral, if any.

No amendment of any provision of this Agreement relating to the Agent as such
shall be effective without the written consent of the Agent.  The Agent may
waive payment of the fees required under SECTIONS 2.4.3 and 12.3.2 without
obtaining the consent of any other party to this Agreement.

      8.3.     PRESERVATION OF RIGHTS.  No delay or omission of the Lenders or
the Agent to exercise any right under the Loan Documents shall impair such right
or be construed to be a waiver of any Default or an acquiescence therein, and
the making of a Loan notwithstanding the existence of a Default or the inability
of the Borrower to satisfy the conditions precedent to such Loan shall not
constitute any waiver or acquiescence.  Any single or partial exercise of any
such right shall not preclude other or further exercise thereof or the exercise
of any other right, and no waiver, amendment or other variation of the terms,
conditions or provisions of the Loan Documents whatsoever shall be valid unless
in writing signed by the Lenders required pursuant to SECTION 8.2, and then only
to the extent in such writing specifically set forth.  All remedies contained in
the Loan Documents or by law afforded shall be cumulative and all shall be
available (in accordance with the respective terms thereof) to the Agent and the
Lenders until the Obligations have been paid in full.


                                     Page 68
<PAGE>


                                   ARTICLE IX

                               GENERAL PROVISIONS


      9.1.     SURVIVAL OF REPRESENTATIONS.  All representations and warranties
of the Borrowing Entities contained in this Agreement shall survive delivery of
the Notes and the making of the Loans and the issuance of the Facility B Letters
of Credit herein contemplated.

      9.2.     GOVERNMENTAL REGULATION.  Anything contained in this Agreement to
the contrary notwithstanding, no Lender shall be obligated to extend credit to
any of the Borrowing Entities in violation of any limitation or prohibition
provided by any applicable statute or regulation.

      9.3.     TAXES.  Any taxes (excluding Excluded Taxes) or other similar
assessments or charges ruled payable by any governmental or revenue authority in
respect of the Loan Documents shall be paid by the relevant Borrowing
Subsidiary, if applicable to its Borrowing Subsidiary Obligations, and the
Borrower, together with interest and penalties, if any.

      9.4.     HEADINGS.  Section headings in the Loan Documents are for
convenience of reference only, and shall not govern the interpretation of any of
the provisions of the Loan Documents.

      9.5.     ENTIRE AGREEMENT.  The Loan Documents embody the entire agreement
and understanding among the Borrowing Entities, the Agent and the Lenders and
supersede all prior agreements and understandings among any of the Borrowing
Entities, the Agent and the Lenders relating to the subject matter thereof.

      9.6.     SEVERAL OBLIGATIONS; BENEFITS OF THIS AGREEMENT.  The respective
obligations of the Lenders hereunder are several and not joint and no Lender
shall be the partner or agent of any other (except to the extent to which the
Agent is authorized to act as such).  The failure of any Lender to perform any
of its obligations hereunder (including, without limitation, those under
SECTIONS 2.8 AND 3.6) shall not relieve any other Lender from any of its
obligations hereunder.  This Agreement shall not be construed so as to confer
any right or benefit upon any Person other than the parties to this Agreement
and their respective successors and permitted assigns.

      9.7.     EXPENSES; INDEMNIFICATION.  The Borrowing Entities shall
reimburse the Agent for any reasonable costs, internal charges and out-of-pocket
expenses (including attorneys' fees and time charges of attorneys for the Agent,
which attorneys may be employees of the Agent) paid or incurred by the Agent or
First Chicago Capital Markets, Inc. in connection with the preparation,
negotiation, execution, delivery, amendment and modification (including
modifications required to add new Borrowing Entities) of the Loan Documents;
provided, however, the maximum amount for which the Borrowing Entities shall be
liable to reimburse the Agent for the fees of Sidley & Austin as counsel to the
Agent for the preparation, negotiation and execution of this Agreement shall be
as set forth in the letter from Sidley & Austin to the Agent dated June 5, 1996.
The Borrowing Entities also agree to reimburse the Agent and the Lenders for any
reasonable costs, internal charges and out-of-pocket expenses (including
attorneys' fees and time charges of attorneys for the Agent and the Lenders,
which attorneys may be employees of the Agent or the Lenders) paid or incurred
by the Agent or any


                                     Page 69
<PAGE>

Lender in connection with the collection and enforcement of the Loan Documents.
The Borrowing Entities further agree to indemnify the Agent and each Lender, its
directors, officers and employees against all losses, claims, damages,
penalties, judgments, liabilities and expenses (including, without limitation,
all expenses of litigation or preparation therefor whether or not the Agent or
any Lender is a party thereto) which any of them may pay or incur arising out of
or relating to this Agreement, the other Loan Documents, the transactions
contemplated hereby or the direct or indirect application or proposed
application of the proceeds of any Loan or the use or intended use of any
Facility B Letter of Credit hereunder; PROVIDED that in no event shall any
Person be entitled to indemnification for any such losses, claims, damages,
penalties, judgments, liabilities or expenses arising out of the Gross
Negligence or willful misconduct of such Person or any of its Affiliates.  The
obligations of the Borrowing Entities under this Section shall survive the
termination of this Agreement.

      9.8.     NUMBERS OF DOCUMENTS.  All statements, notices, closing
documents, and requests hereunder shall be furnished to the Agent with
sufficient counterparts so that the Agent may furnish one to each of the
Lenders.

      9.9.     ACCOUNTING.  Except as expressly provided to the contrary herein,
all accounting terms used herein shall be interpreted and all accounting
determinations hereunder shall be made in accordance with Agreement Accounting
Principles.

     9.10.     SEVERABILITY OF PROVISIONS.  Any provision in any Loan Document
that is held to be inoperative, unenforceable, or invalid in any jurisdiction
shall, as to that jurisdiction, be inoperative, unenforceable, or invalid
without affecting the remaining provisions in that jurisdiction or the
operation, enforceability, or validity of that provision in any other
jurisdiction, and to this end the provisions of all Loan Documents are declared
to be severable.

     9.11.     NONLIABILITY OF LENDERS.  The relationship between the Borrowing
Entities and the Lenders and the Agent shall be solely that of borrower and
lender.  Neither the Agent nor any Lender shall have any fiduciary
responsibilities to the Borrowing Entities.  Neither the Agent nor any Lender
undertakes any responsibility to the Borrowing Entities to review or inform the
Borrowing Entities of any matter in connection with any phase of the Borrowing
Entities' business or operations.

     9.12.     LANGUAGE.  The Loan Documents and all notices, communications,
opinions and other documents to be furnished by or on behalf of any Borrowing
Entity pursuant to the Loan Documents shall be in the English language or, in
the case of any notices, communications, opinions or other documents submitted
in another language, accompanied by a certified English translation thereof and
in the event of any conflict between the English text and such other text of any
such document, the English text shall prevail.

     9.13.     CHOICE OF LAW.  THE LOAN DOCUMENTS (OTHER THAN THOSE CONTAINING A
CONTRARY EXPRESS CHOICE OF LAW PROVISION) SHALL BE CONSTRUED IN ACCORDANCE WITH
THE INTERNAL LAWS (AND NOT THE LAW OF CONFLICTS) OF THE STATE OF ILLINOIS, BUT
GIVING EFFECT TO FEDERAL LAWS APPLICABLE TO NATIONAL BANKS.


                                     Page 70
<PAGE>

     9.14.     CONSENT TO JURISDICTION.  THE BORROWING ENTITIES EACH HEREBY
IRREVOCABLY SUBMIT TO THE NON-EXCLUSIVE JURISDICTION OF ANY UNITED STATES
FEDERAL OR ILLINOIS STATE COURT SITTING IN CHICAGO IN ANY ACTION OR PROCEEDING
ARISING OUT OF OR RELATING TO ANY LOAN DOCUMENTS AND THE BORROWING ENTITIES EACH
HEREBY IRREVOCABLY AGREE THAT ALL CLAIMS IN RESPECT OF SUCH ACTION OR PROCEEDING
MAY BE HEARD AND DETERMINED IN ANY SUCH COURT AND IRREVOCABLY WAIVE ANY
OBJECTION THEY MAY NOW OR HEREAFTER HAVE AS TO THE VENUE OF ANY SUCH SUIT,
ACTION OR PROCEEDING BROUGHT IN SUCH A COURT OR THAT SUCH COURT IS AN
INCONVENIENT FORUM.  NOTHING HEREIN SHALL LIMIT THE RIGHT OF THE AGENT OR ANY
LENDER TO BRING PROCEEDINGS AGAINST THE BORROWING ENTITIES IN THE COURTS OF ANY
OTHER JURISDICTION.  ANY JUDICIAL PROCEEDING BY ANY OF THE BORROWING ENTITIES
AGAINST THE AGENT OR ANY LENDER OR ANY AFFILIATE OF THE AGENT OR ANY LENDER
INVOLVING, DIRECTLY OR INDIRECTLY, ANY MATTER IN ANY WAY ARISING OUT OF, RELATED
TO, OR CONNECTED WITH ANY LOAN DOCUMENT SHALL BE BROUGHT ONLY IN A COURT IN
CHICAGO, ILLINOIS.

     9.15.     SERVICE OF PROCESS.  EACH BORROWING SUBSIDIARY HEREBY AGREES THAT
SERVICE OF ALL WRITS, PROCESS AND SUMMONSES IN ANY SUCH SUIT, ACTION OR
PROCEEDING BROUGHT IN THE STATE OF ILLINOIS MAY BE MADE UPON THE BORROWER (THE
"PROCESS AGENT"), PRESENTLY LOCATED AT THE ADDRESS APPLICABLE PURSUANT TO
ARTICLE XIII HEREOF.  EACH BORROWING SUBSIDIARY HEREBY IRREVOCABLY APPOINTS THE
PROCESS AGENT ITS TRUE AND LAWFUL AGENT IN ITS NAME, PLACE AND STEAD TO ACCEPT
SUCH SERVICE OF ANY AND ALL SUCH WRITS, PROCESS AND SUMMONSES, AND AGREES THAT
THE FAILURE OF THE PROCESS AGENT TO GIVE ANY NOTICE OF ANY SUCH SERVICE OF
PROCESS TO ANY SUCH BORROWING SUBSIDIARY SHALL NOT IMPAIR OR AFFECT THE VALIDITY
OF SUCH SERVICE OR OF ANY JUDGMENT BASED THEREON.  EACH BORROWING SUBSIDIARY
HEREBY FURTHER IRREVOCABLY CONSENTS TO THE SERVICE OF PROCESS IN ANY SUIT,
ACTION OR PROCEEDING IN SAID COURTS BY THE MAILING THEREOF BY THE AGENT OR THE
LENDERS BY REGISTERED OR CERTIFIED MAIL, POSTAGE PREPAID, TO EACH BORROWING
SUBSIDIARY ADDRESSED AS PROVIDED HEREIN.  NOTHING HEREIN SHALL IN ANY WAY BE
DEEMED TO LIMIT THE ABILITY OF THE AGENT OR THE LENDERS TO SERVE ANY SUCH WRITS,
PROCESS OR SUMMONSES IN ANY OTHER MANNER PERMITTED BY APPLICABLE LAW OR TO
OBTAIN JURISDICTION OVER THE BORROWING ENTITIES IN SUCH OTHER JURISDICTION, AND
IN SUCH MANNER, AS MAY BE PERMITTED BY APPLICABLE LAW.

     9.16.     WAIVER OF JURY TRIAL.  EACH OF THE BORROWING ENTITIES, THE AGENT
AND EACH LENDER HEREBY WAIVE TRIAL BY JURY IN ANY JUDICIAL PROCEEDING INVOLVING,
DIRECTLY OR INDIRECTLY, ANY MATTER (WHETHER SOUNDING IN TORT, CONTRACT OR
OTHERWISE) IN ANY WAY ARISING OUT OF, RELATED TO, OR CONNECTED WITH ANY LOAN
DOCUMENT OR THE RELATIONSHIP ESTABLISHED THEREUNDER.


                                     Page 71
<PAGE>

     9.17.     ERISA REPRESENTATION.  Each Lender hereby represents, warrants
and agrees that none of the funds, monies, assets or other consideration being
used to make its Loans or acquire its participating interest in any Facility B
Letters of Credit (or any funding in respect thereof) hereunder, to acquire its
rights and interests in and under any of the Loan Documents, or to acquire any
participation in the foregoing from any other Lender are or will constitute
"plan assets" of any "employee benefit plan" as defined under ERISA and that its
rights, benefits, and interests in and under the Loan Documents will not be
"plan assets" of any "employee benefit plan" under ERISA.

     9.18.     CONFIDENTIALITY.  Each Lender agrees to hold any confidential
information which it may receive from the Borrower or any Subsidiary pursuant to
this Agreement in confidence, except for disclosure (i) to other Lenders and
their respective Affiliates, (ii) to legal counsel, accountants, and other
professional advisors to that Lender or to a Transferee on a need-to-know basis,
(iii) upon request from regulatory officials, (iv) to any Person as required by
law, regulation, or legal process, (v) to any Person as required in connection
with any legal proceeding to which that Lender is a party, and (vi) permitted by
SECTION 12.4.

     9.19.     JOINT AND SEVERAL LIABILITY.  Each Borrowing Subsidiary that is a
Domestic Subsidiary agrees that it shall be jointly and severally liable for all
Obligations under this Agreement to the same extent as if it were the Borrower
or other Borrowing Entity that incurred the same.

                                    ARTICLE X

                                    THE AGENT


     10.1.     APPOINTMENT.  The First National Bank of Chicago is hereby
appointed Agent hereunder and under each other Loan Document, and each of the
Lenders irrevocably authorizes the Agent to act as the contractual
representative of such Lender.  The Agent agrees to act as such upon the express
conditions contained in this Article X.  The Agent shall not have a fiduciary
relationship in respect of any Borrowing Entity or any Lender by reason of this
Agreement.  Notwithstanding the use of the defined term "Agent," it is expressly
understood and agreed that the Agent shall not have any fiduciary
responsibilities to any Lender by reason of this Agreement and that the Agent is
merely acting as the representative of the Lenders with only those duties as are
expressly set forth in this Agreement and the other Loan Documents.  In its
capacity as the Lenders' contractual representative, the Agent (i) does not
assume any fiduciary duties to any of the Lenders, (ii) is a "representative" of
the Lenders within the meaning of SECTION 9-105 of the Uniform Commercial Code
and (iii) is acting as an independent contractor, the rights and duties of which
are limited to those expressly set forth in this Agreement and the other Loan
Documents.  Each of the Lenders agrees to assert no claim against the Agent on
any agency theory or any other theory of liability for breach of fiduciary duty,
all of which claims each Lender waives.


     10.2.     POWERS.  The Agent shall have and may exercise such powers under
the Loan Documents as are specifically delegated to the Agent by the terms of
each thereof, together with such powers as are reasonably incidental thereto.
The Agent shall have no implied duties or fiduciary duties to the Lenders, or
any obligation to the Lenders to take any action hereunder or under any of


                                     Page 72
<PAGE>

the other Loan Documents except any action specifically provided by the Loan
Documents required to be taken by the Agent.

     10.3.     GENERAL IMMUNITY.  Neither the Agent nor any of its directors,
officers, agents, affiliates or employees shall be liable to any Borrowing
Entity, the Lenders or any Lender for any action taken or omitted to be taken by
it or them hereunder or under any other Loan Document or in connection herewith
or therewith except to the extent such action or inaction is found in a final
judgment by a court of competent jurisdiction to have arisen solely from (i) the
Gross Negligence or willful misconduct of such Person or (ii) breach of contract
by such Person with respect to the Loan Documents.

     10.4.     NO RESPONSIBILITY FOR LOANS, RECITALS, ETC.  Neither the Agent,
First Chicago Capital Markets, Inc. nor any of their respective directors,
officers, agents or employees shall be responsible for or have any duty to
ascertain, inquire into, or verify (i) any statement, warranty or representation
made in connection with any Loan Document or any borrowing hereunder, including
statements made in any offering memorandum or "Bank Book"; (ii) the performance
or observance of any of the covenants or agreements of any obligor under any
Loan Document, including, without limitation, any agreement by an obligor to
furnish information directly to each Lender (PROVIDED that the Agent will, upon
request, verify to the extent feasible the various transfers of funds which take
place under the Agreement); (iii) the satisfaction of any condition specified in
Article IV, except receipt of items required to be delivered to the Agent; or
(iv) the validity, effectiveness or genuineness of any Loan Document or any
other instrument or writing furnished in connection therewith.  The Agent and
First Chicago Capital Markets, Inc. shall have no duty to disclose to the
Lenders information that is not required to be furnished by any Borrowing Entity
to the Agent at such time, but is voluntarily furnished by any Borrowing Entity
to the Agent (either in its capacity as Agent or in its individual capacity).

     10.5.     ACTION ON INSTRUCTIONS OF LENDERS.  The Agent shall in all cases
be fully protected in acting, or in refraining from acting, hereunder and under
any other Loan Document in accordance with written instructions signed by the
Required Lenders, and such instructions and any action taken or failure to act
pursuant thereto shall be binding on all of the Lenders and on all holders of
Notes.  The Agent shall be fully justified in failing or refusing to take any
action hereunder and under any other Loan Document unless it shall first be
indemnified to its satisfaction by the Lenders pro rata against any and all
liability, cost and expense that it may incur by reason of taking or continuing
to take any such action.

     10.6.     EMPLOYMENT OF AGENTS AND COUNSEL.  The Agent may execute any of
its duties as Agent hereunder and under any other Loan Document by or through
employees, agents, and attorneys-in-fact and shall not be answerable to the
Lenders, except as to money or securities received by it or its authorized
agents, for the default or misconduct of any such agents or attorneys-in-fact
selected by it with reasonable care.  The Agent shall be entitled to advice of
counsel concerning all matters pertaining to the agency hereby created and its
duties hereunder and under any other Loan Document.

     10.7.     RELIANCE ON DOCUMENTS; COUNSEL.  The Agent shall be entitled to
rely upon any Note, notice, consent, certificate, affidavit, letter, telegram,
statement, paper or document believed by it to


                                     Page 73
<PAGE>

be genuine and correct and to have been signed or sent by the proper person or
persons, and, in respect to legal matters, upon the opinion of counsel selected
by the Agent, which counsel may be employees of the Agent.

     10.8.     AGENT'S REIMBURSEMENT AND INDEMNIFICATION.  The Lenders agree to
reimburse and indemnify the Agent ratably in proportion to their respective
Commitments (i) for any amounts not reimbursed by any Borrowing Entity for which
the Agent is entitled to reimbursement by any Borrowing Entity under the Loan
Documents, (ii) for any other expenses incurred by the Agent on behalf of the
Lenders, in connection with the preparation, execution, delivery and enforcement
of the Loan Documents and (iii) for any liabilities, obligations, losses,
damages, penalties, actions, judgments, suits, costs, expenses or disbursements
of any kind and nature whatsoever which may be imposed on, incurred by or
asserted against the Agent in any way relating to or arising out of the Loan
Documents or any other document delivered in connection therewith or the
transactions contemplated thereby, or the enforcement of any of the terms
thereof or of any such other documents, provided that no Lender shall be liable
for any of the foregoing to the extent they arise from the Gross Negligence or
willful misconduct of the Agent.  The obligations of the Lenders under this
SECTION 10.8 shall survive payment of the Obligations and termination of this
Agreement.

     10.9.     RIGHTS AS A LENDER.  In the event the Agent is a Lender
(including its capacity as an Issuing Bank), the Agent shall have the same
rights and powers hereunder and under any other Loan Document as any Lender and
may exercise the same as though it were not the Agent, and the term "Lender" or
"Lenders" shall, at any time when the Agent is a Lender, unless the context
otherwise indicates, include the Agent in its individual capacity.  The Agent
may accept deposits from, lend money to, and generally engage in any kind of
trust, debt, equity or other transaction, in addition to those contemplated by
this Agreement or any other Loan Document, with the Borrower or any of its
Subsidiaries in which the Borrower or such Subsidiary is not restricted hereby
from engaging with any other Person.  The Agent, in its individual capacity, is
not obligated to remain a Lender.

     10.l0.    LENDER CREDIT DECISION.  Each Lender acknowledges that it has,
independently and without reliance upon the Agent or any other Lender and based
on the financial statements prepared by the Borrower and such other documents
and information as it has deemed appropriate, made its own credit analysis and
decision to enter into this Agreement and the other Loan Documents.  Each Lender
also acknowledges that it will, independently and without reliance upon the
Agent or any other Lender and based on such documents and information as it
shall deem appropriate at the time, continue to make its own credit decisions in
taking or not taking action under this Agreement and the other Loan Documents.

     10.11.    SUCCESSOR AGENT.  The Agent may resign at any time by giving
written notice thereof to the Lenders and the Borrowing Entities, such
resignation to be effective upon the appointment of a successor Agent or, if no
successor Agent has been appointed, forty-five days after the retiring Agent
gives notice of its intention to resign.  Upon any such resignation, the
Required Lenders (with the consent of the Borrower) shall have the right to
appoint, on behalf of the Borrowing Entities and the Lenders, a successor Agent.
If no successor Agent shall have been so appointed by the Required Lenders (with
the consent of the Borrower) within thirty days after the resigning Agent's
giving notice of its intention to resign, then the resigning Agent may appoint,
on behalf of the Borrowing Entities and the Lenders, a successor Agent.  If the
Agent has resigned and no successor Agent has


                                     Page 74
<PAGE>

been appointed, the Lenders may perform all the duties of the Agent hereunder
and the Borrowing Entities shall make all payments in respect of the Obligations
to the applicable Lender and for all other purposes shall deal directly with the
Lenders.  No successor Agent shall be deemed to be appointed hereunder until
such successor Agent has accepted the appointment.  Any such successor Agent
shall be a commercial bank having capital and retained earnings of at least
$250,000,000.  Upon the acceptance of any appointment as Agent hereunder by a
successor Agent, such successor Agent shall thereupon succeed to and become
vested with all the rights, powers, privileges and duties of the resigning
Agent.  Upon the effectiveness of the resignation of the Agent, the resigning
Agent shall be discharged from any further duties and obligations as Agent
hereunder and under the Loan Documents.  After the effectiveness of the
resignation of an Agent, the provisions of this Article X shall continue in
effect for the benefit of such Agent in respect of any actions taken or omitted
to be taken by it while it was acting as the Agent hereunder and under the other
Loan Documents.


                                   ARTICLE XI

                            SETOFF; RATABLE PAYMENTS


     11.1.     SETOFF.  In addition to, and without limitation of, any rights of
the Lenders under applicable law, if the Borrower becomes insolvent, however
evidenced, or any Default occurs and is continuing, any and all deposits
(including all account balances, whether provisional or final and whether or not
collected or available) and any other Indebtedness at any time held or owing by
any Lender to or for the credit or account of the Borrower may be offset and
applied toward the payment of the Obligations owing to such Lender, whether or
not the Obligations, or any part hereof, shall then be due.

     11.2.     RATABLE PAYMENTS.  If any Lender, whether by setoff or otherwise,
has payment made to it upon its Loans (other than payments received pursuant to
SECTIONS 2.20.1, 2.20.2, 2.20.3 or 2.20.5) in a greater proportion than that
received by any other Lender, such Lender agrees, promptly upon demand, to
purchase a portion of the Loans held by the other Lenders so that after such
purchase each Lender will hold its ratable proportion of Loans.  If any Lender,
whether in connection with setoff or amounts which might be subject to setoff or
otherwise, receives collateral or other protection for its Obligations or such
amounts which may be subject to setoff, such Lender agrees, promptly upon
demand, to take such action necessary such that all Lenders share in the
benefits of such collateral ratably in proportion to their Loans.  In case any
such payment is disturbed by legal process, or otherwise, appropriate further
adjustments shall be made.


                                   ARTICLE XII

                BENEFIT OF AGREEMENT; ASSIGNMENTS; PARTICIPATIONS


     12.1.     SUCCESSORS AND ASSIGNS.  The terms and provisions of the Loan
Documents shall be binding upon and inure to the benefit of the Borrowing
Entities and the Lenders and their respective


                                     Page 75
<PAGE>

successors and assigns, except that (i) none of the Borrowing Entities shall
have the right to assign its rights or obligations under the Loan Documents and
(ii) any assignment by any Lender must be made in compliance with SECTION 12.3.
Notwithstanding clause (ii) of this Section, any Lender may at any time, without
the consent of any of the Borrowing Entities or the Agent, assign all or any
portion of its rights under this Agreement and its Notes to a Federal Reserve
Bank; PROVIDED, HOWEVER, that no such assignment shall release the transferor
Lender from its obligations hereunder.  The Agent and the Borrowing Entities may
treat the payee of any Note as shown on the Agent's records as the owner thereof
(and as the "Lender" hereunder) for all purposes hereof unless and until such
payee complies with SECTION 12.3 in the case of an assignment thereof or, in the
case of any other transfer, a written notice of the transfer is filed with the
Agent (with a copy to the Borrower).  Any assignee or transferee of a Note
agrees by acceptance thereof to be bound by all the terms and provisions of the
Loan Documents.  Any request, authority or consent of any Person, who at the
time of making such request or giving such authority or consent is the holder as
shown on the records of the Agent of any Note, shall be conclusive and binding
on any subsequent holder, transferee or assignee of such Note or of any Note or
Notes issued in exchange therefor.


     12.2.     PARTICIPATIONS.

          12.2.1  PERMITTED PARTICIPANTS; EFFECT.  Any Lender may, in the
     ordinary course of its business and in accordance with applicable law, at
     any time sell to one or more banks or other entities ("Participants")
     participating interests in any Loan owing to such Lender, any Note held by
     such Lender, any Lender's Percentage of Facility B Letters of Credit, any
     Commitment of such Lender or any other interest of such Lender under the
     Loan Documents.  In the event of any such sale by a Lender of participating
     interests to a Participant, such Lender's obligations under the Loan
     Documents shall remain unchanged, such Lender shall remain solely
     responsible to the other parties hereto for the performance of such
     obligations, such Lender shall remain the holder of any such Note (and the
     "Lender") for all purposes under the Loan Documents, all amounts payable by
     any of the Borrowing Entities under this Agreement shall be determined as
     if such Lender had not sold such participating interests, and the Borrowing
     Entities and the Agent shall continue to deal solely and directly with such
     Lender in connection with such Lender's rights and obligations under the
     Loan Documents.

          12.2.2.  BENEFIT OF SETOFF.  Each of the Borrowing Entities agrees
     that each Participant of which it has actual notice shall be deemed to have
     the right of setoff provided in SECTION 11.1 in respect of its
     participating interest in amounts owing under the Loan Documents to the
     same extent as if the amount of its participating interest were owing
     directly to it as a Lender under the Loan Documents, provided that each
     Lender shall retain the right of setoff provided in SECTION 11.1 with
     respect to the amount of participating interests sold to each Participant.
     The Lenders agree to share with each Participant, and each Participant, by
     exercising the right of setoff provided in SECTION 11.1, agrees to share
     with each Lender, any amount received pursuant to the exercise of its right
     of setoff, such amounts to be shared in accordance with SECTION 11.2 as if
     each Participant were a Lender.

     12.3.     ASSIGNMENTS.


                                     Page 76
<PAGE>

          12.3.1.  PERMITTED ASSIGNMENTS.  Any Lender may, in the ordinary
     course of its business and in accordance with applicable law, at any time
     assign to one or more banks or other financial institutions ("Purchasers")
     all, or any part in a minimum aggregate amount of $5,000,000, of its rights
     and obligations under the Loan Documents.  Such assignment shall be
     effected by a document substantially in the form of EXHIBIT H hereto or in
     such other form as may be agreed to by the parties thereto.  The consent of
     the Borrower and the Agent shall be required prior to an assignment
     becoming effective with respect to a Purchaser which is not a Lender;
     PROVIDED, HOWEVER, that if a Default has occurred and is continuing, the
     consent of the Borrower shall not be required and the minimum amount may be
     reduced with the consent of the Agent.  Such consent shall not be
     unreasonably withheld or delayed.

          12.3.2.  EFFECT; EFFECTIVE DATE.  Upon (i) delivery to the Agent of a
     notice of assignment, substantially in the form attached as Annex I to
     EXHIBIT H hereto (a "Notice of Assignment"), together with any consents
     required by SECTION 12.3.1, and (ii) payment of a [$2,500] fee to the Agent
     for processing such assignment, such assignment shall become effective on
     the effective date specified in such Notice of Assignment.  The Notice of
     Assignment shall contain (or to the extent not contained, shall constitute)
     a representation by the Purchaser to the effect that none of the
     consideration used to make the purchase of the Commitment, Facility B
     Letters of Credit and Loans under the applicable assignment agreement are
     "plan assets" as defined under ERISA and that the rights and interests of
     the Purchaser in and under the Loan Documents will not be "plan assets"
     under ERISA.  On and after the effective date of such assignment, such
     Purchaser shall for all purposes be a Lender party to this Agreement and
     any other Loan Document executed by the Lenders and shall have all the
     rights and obligations of a Lender under the Loan Documents, to the same
     extent as if it were an original party hereto, and no further consent or
     action by any of the Borrowing Entities, the Lenders or the Agent shall be
     required to release the transferor Lender with respect to its Percentage of
     the Aggregate Commitment, Facility B Letters of Credit and Loans assigned
     to such Purchaser.  Upon the consummation of any assignment to a Purchaser
     pursuant to this SECTION 12.3.2, the transferor Lender, the Agent and the
     Borrowing Entities shall make appropriate arrangements so that replacement
     Notes are issued to such transferor Lender and new Notes or, as
     appropriate, replacement Notes, are issued (against receipt of previously
     issued Notes for cancellation) to such Purchaser, in each case in principal
     amounts reflecting their Commitment, as adjusted pursuant to such
     assignment.  In addition, within a reasonable time after the effective date
     of any assignment, the Agent shall, and is hereby authorized and directed
     to, revise SCHEDULE 1 reflecting the revised Percentages of each of the
     Lenders and shall distribute such revised SCHEDULE 1 to the Lenders and the
     Borrowing Entities and such revised SCHEDULE 1 shall replace the old
     SCHEDULE 1 and become part of this Agreement.

     12.4.     DISSEMINATION OF INFORMATION.  The Borrowing Entities authorize
each Lender to disclose to any Participant or Purchaser or any other Person
acquiring an interest in the Loan Documents by operation of law (each a
"Transferee") and any prospective Transferee any and all information in such
Lender's possession concerning the creditworthiness of the Borrower and its
Subsidiaries, PROVIDED that each Transferee and prospective Transferee agrees to
be bound by the confidentiality restrictions set forth in SECTION 9.18 of this
Agreement.


                                     Page 77
<PAGE>

     12.5.     TAX TREATMENT.  If any interest in any Loan Document is
transferred to any Transferee which is organized under the laws of any
jurisdiction other than the United States or any State thereof, the transferor
Lender shall cause such Transferee, concurrently with the effectiveness of such
transfer, to comply with the provisions of SECTION 2.18.


                                  ARTICLE XIII

                                     NOTICES


     13.1.     GIVING NOTICE.  Except as otherwise permitted by SECTIONS 2.13
and 3.4, all notices and other communications provided to any party hereto under
this Agreement or any other Loan Document shall be in writing or by telex or by
facsimile and addressed or delivered to such party at its address set forth
below its signature hereto or at such other address as may be designated by such
party in a notice to the other parties.  Any notice, if mailed and properly
addressed with postage prepaid, shall be deemed given when received; any notice,
if transmitted by telex or facsimile, shall be deemed given when transmitted
(answerback confirmed in the case of telexes).

     13.2.     CHANGE OF ADDRESS.  Any Borrowing Entity, the Agent and any
Lender may each change the address for service of notice upon it by a notice in
writing to the other parties hereto.



                                   ARTICLE XIV

          BORROWER RESPONSIBILITY FOR BORROWING SUBSIDIARY OBLIGATIONS


     14.1 DIRECT OBLIGATIONS.  The Borrower hereby unconditionally and
irrevocably affirms to the Lenders its direct liability for, and guarantees to
the Lenders, the due and punctual payment of the Borrowing Subsidiary
Obligations, including, but not limited to, the due and punctual payment of
principal of and interest on the Borrowing Subsidiary Notes, and punctual
payment of all other sums now or hereafter owed by the Borrowing Subsidiaries
under the Loan Documents as and when the same shall become due (whether by
acceleration or otherwise) and according to the terms hereof and thereof.  In
case of failure by any Borrowing Subsidiary punctually to pay any Borrowing
Subsidiary Obligations, the Borrower hereby unconditionally agrees to cause such
payment to be made punctually as and when the same shall become due and payable,
whether at maturity or by declaration or otherwise, and as if such payment were
made by the Borrowing Subsidiary.

     14.2 OBLIGATIONS UNCONDITIONAL.  The Obligations of the Borrower under this
Article XIV shall be irrevocable, unconditional and absolute and, without
limiting the generality of the foregoing, shall not be released, discharged or
otherwise affected by:


                                     Page 78
<PAGE>

          (a)  any extension, renewal, settlement, compromise, waiver or release
     in respect of any obligation of any Borrowing Subsidiary under any Loan
     Document by operation of law or otherwise;

          (b)  any modification or amendment of or supplement to any Loan
     Document;

          (c)  any compromise, settlement, modification, amendment, waiver,
     release, non-perfection or invalidity of or to any direct or indirect
     security, guarantee or other liability of any third party, or Borrowing
     Subsidiary Obligations;

          (d)  any change in the corporate existence, structure, or ownership
     of, or any insolvency, bankruptcy, reorganization or other similar
     proceeding affecting any Borrowing Subsidiary or its assets or any
     resulting release or discharge of any Borrowing Subsidiary Obligations;

          (e)  the existence of any claim, set-off or other rights which the
     Borrower may have at any time against any Borrowing Subsidiary, the Agent,
     any Lender or any other Person, whether or not arising in connection with
     this Agreement, PROVIDED that nothing herein shall prevent the assertion of
     any such claim by separate suit or compulsory counterclaim;

          (f)  any invalidity or unenforceability relating to or against any
     Borrowing Subsidiary for any reason of any Loan Document, or any provision
     of applicable law or regulation purporting to prohibit the payment by any
     Borrowing Subsidiary of the principal of or interest on any Borrowing
     Subsidiary Note or any other amount payable by it under this Agreement; or

          (g)  to the extent permitted by applicable law, any other act or
     omission to act or delay of any kind by any Borrowing Subsidiary, the
     Agent, any Lender or any other Person or any other circumstance whatsoever
     that might, but for the provisions of this paragraph, constitute a legal or
     equitable discharge of the obligations of the Borrower under this Article
     XIV.

     14.3.     DISCHARGE ONLY UPON PAYMENT IN FULL; REINSTATEMENT IN CERTAIN
CIRCUMSTANCES.  The Borrower's obligations under this Article XIV shall remain
in full force and effect until the Aggregate Commitment is terminated and the
principal of and interest on the Notes and all other Obligations payable under
the Loan Documents shall have been paid in full.  If at any time any payment of
the principal of or interest on any Borrowing Subsidiary Note or any other
amount payable by any Borrowing Subsidiary under any Loan Document is rescinded
or must be otherwise restored or returned upon the insolvency, bankruptcy or
reorganization of any Borrowing Subsidiary or otherwise, the Borrower's
obligations under this Article XIV with respect to such payment shall be
reinstated at such time as though such payment had become due but had not been
made at such time.  This SECTION 14.3 shall survive the termination of this
Agreement and the payment in full of the Obligations.

     14.4.     WAIVER.  The Borrower irrevocably waives acceptance hereof,
presentment, demand, protest and any notice not provided for herein, as well as
any requirement that at any time any action


                                     Page 79
<PAGE>

be taken by any Person against any Borrowing Subsidiary or any other Person.
The Borrower waives any claim, as that term is defined in the Federal Bankruptcy
Code, which the Borrower might now have or hereafter acquire against any
Borrowing Subsidiary that arises from the existence or performance of the
Borrower's obligations under this Article XIV.  The Borrower waives any benefit
of the collateral, if any, which may from time to time secure the Obligations or
any part thereof and authorizes the Agent or the Lenders to take any action or
exercise any remedy with respect thereto, which the Agent or the Lenders in its
or their sole discretion shall determine, without notice to the Borrower.  In
the event the Lenders in their sole discretion elect to give notice of any
action with respect to the collateral, if any, securing the Obligations or any
part thereof, ten days' written notice mailed to the Borrower by certified mail
at the address shown hereon shall be deemed reasonable notice of any matters
contained in such notice.

     14.5.     STAY OF ACCELERATION.  If acceleration of the time for payment of
any amount payable by any Borrowing Subsidiary under any of the Loan Documents
is stayed upon the insolvency, bankruptcy or reorganization of any Borrowing
Subsidiary all such amounts otherwise subject to acceleration under the terms of
this Agreement shall nonetheless be payable by the Borrower hereunder forthwith
on demand by the Agent.

     14.6 PAYMENTS.  All payments to be made by the Borrower pursuant to this
Article XIV shall be made at the times and in the manner and in the currency
prescribed for payments in this Agreement.

     14.7 SUBROGATION.  Notwithstanding any payments made or obligations
performed by the Borrower by reason of this Article XIV (including but not
limited to application of funds on account of such payments of obligations), the
Borrower hereby irrevocably waives and releases any and all rights it may have
at any time (whether arising directly or indirectly, by operation of law,
contract or otherwise) to assert any claim against any Borrowing Subsidiary or
any other Person or against any direct or indirect security on account of
payments made or obligations performed under or pursuant to this Article XIV,
including without limitation any and all rights of subrogation, reimbursement,
exoneration, contribution or indemnity, and any and all rights that would result
in the Borrower being deemed a "creditor" under the United States Bankruptcy
Code of any Borrowing Subsidiary or any other person.


                                     Page 80
<PAGE>

                                   ARTICLE XV

                                  COUNTERPARTS


     This Agreement may be executed in any number of counterparts, all of which
taken together shall constitute one agreement, and any of the parties hereto may
execute this Agreement by signing any such counterpart.  This Agreement shall be
effective when it has been executed by the Borrower, the Agent and the Lenders
and each party has notified the Agent by telex or telephone, that it has taken
such action.

     IN WITNESS WHEREOF, the Borrowing Entities, the Lenders and the Agent have
executed this Agreement as of the date first above written.

                              VARLEN CORPORATION,
                                AS THE BORROWER

                              By:
                                 ---------------------------

                              Print Name:
                                              -------------------

                              Title:
                                         ------------------------

                                        55 Shuman Boulevard
                                        P.O. Box 3089
                                        Naperville, Illinois  60566-7089

                              Attention:     Richard A. Nunemaker, Vice
                                             President, Finance, Chief Financial
                                             Officer and Treasurer
                                 FAX:        (708) 420-7123
                                 Telephone:  (708) 983-2942



                                     Page 81
<PAGE>


                              THE FIRST NATIONAL BANK OF CHICAGO,
                               INDIVIDUALLY AND AS AGENT

                              By:
                                 ---------------------------

                              Print Name:
                                              -------------------

                              Title:
                                         ------------------------

                              Address:       One First National Plaza, Ste. 0173
                                             Chicago, Illinois  60670

                              Attention:     J. Garland Smith, Vice President
                                 FAX:        (312) 732-1117
                                 Telephone:  (312) 732-2735




                                 [OTHER LENDERS]



                                     Page 82

<PAGE>
                                                                       EXHIBIT C
 
                             ACQUISITION AGREEMENT
 
    ACQUISITION  AGREEMENT (as the  same may be  modified, amended, supplemented
and/or restated from time to time, this "Agreement"), dated as of June 15, 1996,
by and among (1) Varlen Corporation, a Delaware corporation ("Varlen"), (2) BAS,
Inc., a  Virginia corporation  and  a wholly  owned  subsidiary of  Varlen  (the
"Purchaser"),   and  (3)  Brenco,  Incorporated,  a  Virginia  corporation  (the
"Company").
 
                                    RECITALS
 
    The respective Boards of Directors of Varlen, the Purchaser and the  Company
have  each determined that it is advisable for Varlen, through the Purchaser, to
acquire all of the Company's outstanding Common Stock, par value $1.00 per share
(the "Shares"), at a price  of $16.125 per Share in  cash pursuant to the  offer
described  below in Article 1 and the merger  described below in Article 2, as a
result of which the Company will become a wholly owned subsidiary of Varlen. The
Board of Directors of the Company has  duly approved such offer and resolved  to
recommend  its acceptance  by the  holders of  Shares. The  respective Boards of
Directors of Varlen, the Purchaser and  the Company have each duly approved  the
merger  of  the Purchaser  and the  Company following  the consummation  of such
offer.
 
    NOW, THEREFORE, in consideration  of the premises  and the mutual  covenants
herein contained, and for other good and valuable consideration, the receipt and
adequacy of which are hereby acknowledged, Varlen, the Purchaser and the Company
hereby agree as follows:
 
                             ARTICLE 1:  THE OFFER
 
    Section 1.1  THE OFFER.  (a)  Provided that none of the conditions set forth
in  ANNEX I to this Agreement shall have occurred, the Purchaser (or one or more
other direct or indirect  wholly owned subsidiaries  of Varlen) shall  promptly,
and  in no event later  than one business day after  the date of this Agreement,
publicly announce, and within five business days thereafter commence (within the
meaning of Rule 14d-2 under the Securities Exchange Act of 1934, as amended (the
"Exchange Act")), an offer to purchase any and all outstanding Shares at a price
of $16.125 per Share, net to the seller in cash and without any interest thereon
(the "Offer",  which  term  shall  include any  amendments  to  such  offer  not
prohibited by this Agreement). The obligation of the Purchaser to consummate the
Offer, to accept for payment and to pay for any Shares tendered shall be subject
to  those conditions set forth in ANNEX I to this Agreement. Without the consent
of the Company, the Purchaser  shall not reduce the price  to be paid per  Share
pursuant  to the Offer, change the form of consideration to be paid in the Offer
or the Merger (as hereinafter defined), increase the minimum number of Shares to
be purchased in the Offer  or amend any other term  of the Offer (including  the
conditions  set  forth on  ANNEX I  to  this Agreement)  in a  manner materially
adverse to the holders of  the Shares. The conditions of  the Offer are for  the
sole  benefit of Varlen and the Purchaser and  may be asserted by Varlen and the
Purchaser regardless of the circumstances giving rise to any such conditions or,
subject to the preceding sentence, may be waived by Varlen and the Purchaser  in
whole or in part.
 
    (b)  On the date that the Purchaser  commences the Offer (within the meaning
of Rule 14D-2 under the Exchange Act), Varlen and the Purchaser shall file  with
the  Securities  and  Exchange  Commission  (the  "Commission")  a  Tender Offer
Statement on Schedule  14D-1 with respect  to the Offer  (the "Schedule  14D-1")
that  will comply  in all  material respects  with the  provisions of applicable
federal securities law and will contain an Offer to Purchase (which, along  with
the related letters of transmittal and summary advertisements, together with any
supplements  or  amendments  thereto,  are  referred  to  herein  as  the "Offer
Documents"). The  Schedule  14D-1 and  the  Offer  Documents, on  the  date  the
Schedule  14D-1 is filed with the Commission and on the date the Offer Documents
are first published, sent or given to securityholders, as the case may be, shall
not contain  any untrue  statement  of a  material fact  or  omit to  state  any
material fact required to be stated therein or
 
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necessary in order to make the statements therein, in light of the circumstances
under  which they were made, not misleading,  and Varlen and the Purchaser agree
promptly to  correct  (and the  Company,  with respect  to  written  information
supplied  by  it  specifically for  use  in  the Schedule  14D-1  and  the Offer
Documents, agrees to promptly request that Varlen and the Purchaser correct) the
Schedule 14D-1 and/or the Offer Documents if and to the extent that any of  them
shall  have become false or  misleading in any material  respect. Varlen and the
Purchaser shall  take all  steps necessary  to cause  the Schedule  14D-1 as  so
corrected  to  be filed  with  the Commission  and  such Offer  Documents  as so
corrected to be  disseminated to  securityholders, in each  case as  and to  the
extent  required by applicable federal securities  laws. None of the information
relating to Varlen and its affiliates supplied in writing by Varlen specifically
for inclusion in the Schedule 14D-9  (as defined hereinbelow) will, at the  time
the Schedule 14D-9 is filed with the Commission, contain any untrue statement of
a material fact or omit to state any material fact required to be stated therein
or  necessary  in  order  to  make  the  statements  therein,  in  light  of the
circumstances under which they were made, not misleading.
 
    Section 1.2  COMPANY ACTIONS.  (a)  The Company represents that the Board of
Directors of the Company (the "Board of Directors") has duly approved the  Offer
and  the Merger and resolved to recommend  acceptance of the Offer by holders of
Shares and approval of the Merger (if such approval is required by the  Virginia
Stock  Corporation Act, as  amended (the "Virginia Act"))  by holders of Shares.
The Company  represents  and warrants  that  its  Board of  Directors  has:  (1)
exempted   Varlen,  the   Purchaser,  their   respective  direct   and  indirect
subsidiaries and the Offer, the  Merger and the other transactions  contemplated
by  this Agreement  from the  restrictions and  other provisions  of Article 14,
SectionSection 13.1-725-13.1-728 (AFFILIATED TRANSACTIONS)  of the Virginia  Act
in  the manner provided by Section 13.1-727.B.1.(iv) thereof, by the adoption of
resolutions substantially in the form set forth in ANNEX II hereto; (2) exempted
Varlen, the Purchaser, their respective direct and indirect subsidiaries and the
Offer, the Merger and the other transactions contemplated by this Agreement from
the super majority shareholder vote provisions  of Article I of the Articles  of
Incorporation,  as amended, of  the Company (the "Charter"),  by the adoption of
resolutions substantially  in the  form set  forth in  ANNEX II  hereto; (3)  in
connection  with  the provisions  of  Article 15  (DISSENTER'S  RIGHTS), Section
13.1-730  of  the  Virginia   Act,  approved  the  Merger   by  a  majority   of
"disinterested  directors" (as defined in Section 13.1-725 of the Virginia Act),
by the adoption of resolutions substantially in  the form set forth in ANNEX  II
hereto; and (4) approved this Agreement, with the effect of (among other things)
exempting  Varlen, the Purchaser, the Offer and the Merger from the restrictions
and provisions of  Article 14.1,  SectionSection 13.1-728.1-13.1-728.9  (CONTROL
SHARE  ACQUISITIONS) of the Virginia Act. The Company and its Board of Directors
(including the "disinterested director" members  thereof) shall take such  other
and  further actions necessary or  appropriate, at the request  of Varlen or the
Purchaser to:  (A)  exempt  Varlen,  the Purchaser,  their  direct  or  indirect
subsidiaries,  the Offer, the Merger and  the other transactions contemplated by
this Agreement  from the  provisions of  any takeover,  affiliated  transaction,
business  combination, control share acquisition or  other provision of: (i) law
or regulation  adopted by  the Commonwealth  of Virginia  or any  department  or
agency  thereof, or (ii) the Charter or  Bylaws of the Company, and (B) maintain
the shareholder vote required to approve the Merger at the two-thirds level.
 
    (b) The  Company  agrees  to file  with  the  Commission, and  mail  to  the
Company's  shareholders,  a  Solicitation/Recommendation  Statement  on Schedule
14D-9 (the  "Schedule 14D-9")  containing  the recommendation  of the  Board  of
Directors  that the holders of Shares accept  the Offer. The Schedule 14D-9 will
comply in  all  material respects  with  the provisions  of  applicable  federal
securities  laws. The Schedule 14D-9, on the  date filed with the Commission and
on the date  first published, sent  or given to  the Company's  securityholders,
shall  not contain any untrue statement of a  material fact or omit to state any
material fact required to be  stated therein or necessary  in order to make  the
statements  therein, in light  of the circumstances under  which they were made,
not misleading, and the Company agrees  promptly to correct (and Varlen and  the
Purchaser,  with  respect  to written  information  supplied by  either  of them
specifically for use in the Schedule  14D-9, agree to promptly request that  the
Company  correct) the  Schedule 14D-9 if  and to  the extent that  it shall have
become false or misleading in any  material respect. The Company shall take  all
steps necessary to cause the Schedule 14D-9 as so corrected to be filed with the
Commission and mailed to the Company's securityholders to
 
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the  extent  required  by  applicable  federal  securities  laws.  None  of  the
information relating to the  Company and its affiliates  supplied in writing  by
the  Company specifically for inclusion in the  Schedule 14D-1 will, at the time
the Schedule 14D-1 is filed with the Commission, contain any untrue statement of
a material fact or omit to state any material fact required to be stated therein
or necessary  in  order  to  make  the  statements  therein,  in  light  of  the
circumstances under which they were made, not misleading.
 
    (c)  The Company will promptly furnish  Varlen or the Purchaser with mailing
labels containing the names  and addresses of the  record holders of Shares  and
lists of securities positions of Shares held in stock depositories, each as of a
recent  date, and shall furnish the  Purchaser with such additional information,
including  updated  lists  of  securityholders,  mailing  labels  and  lists  of
securities  positions,  and other  assistance  as the  Purchaser  may reasonably
request for the  purpose of communicating  the Offer to  the holders of  Shares.
Varlen  and the Purchaser agree to  hold the foregoing information confidential,
to use it only  in connection with the  Offer and the Merger,  and in the  event
this Agreement is terminated in accordance with its terms to cause such lists to
be returned to the Company.
 
    Section  1.3  DIRECTORS.   Promptly upon the acceptance  for payment of, and
payment by the Purchaser in accordance  with the Offer for, Shares  constituting
50%  or more of all Shares then outstanding pursuant to the Offer, and from time
to time thereafter, the Purchaser shall be entitled to designate such number  of
directors,  rounded up to  the next whole  number, on the  Board of Directors as
will give the  Purchaser representation on  the Board of  Directors equal to  at
least  that number of directors which equals  the product of the total number of
directors on the  Board of  Directors (giving  effect to  the directors  elected
pursuant  to this  sentence) multiplied  by the  percentage that  such number of
Shares so accepted for payment and paid for or owned by the Purchaser or  Varlen
bears  to the number of Shares outstanding, and the Company shall, at such time,
use its  best efforts  to cause  the  Purchaser's designees  to be  so  elected;
PROVIDED,  HOWEVER, that the Purchaser shall  have the right (in its discretion)
to designate a number of directors less than such product; AND PROVIDED FURTHER,
HOWEVER, that at  all times  prior to  the Merger there  shall be  at least  two
members of the Board of Directors of the Company selected by the current members
of  such Board.  Subject to  applicable law, the  Company shall  take all action
necessary to effect any such election (including mailing to its shareholders the
information  required  Section  14(f)  of  the  Exchange  Act  and  Rule   14f-1
promulgated thereunder, in form and substance reasonably satisfactory to Varlen)
and  use its reasonable best efforts to cause the resignation of such directors,
and/or an increase in the number of its directors, as may be directed by  Varlen
and required to implement the provisions of this Section 1.3.
 
                             ARTICLE 2:  THE MERGER
 
    Section  2.1  THE MERGER.  At the  Effective Time (as defined in Section 2.3
hereof), in accordance with this Agreement  and the Virginia Act, the  Purchaser
shall  be  merged with  and  into the  Company,  the separate  existence  of the
Purchaser (except as may be continued by operation of law) shall cease, and  the
Company  shall continue as the surviving corporation of the Merger. The Company,
after the  Merger,  is  hereinafter  sometimes referred  to  as  the  "Surviving
Corporation."  At the  election of Varlen,  any other direct  or indirect wholly
owned subsidiary of Varlen may be substituted for the Purchaser as a constituent
corporation in the merger for purposes of this Section 2.1.
 
    Section 2.2  EFFECT  OF THE MERGER.   At the  Effective Time, the  Surviving
Corporation  shall  continue  its  corporate existence  under  the  laws  of the
Commonwealth  of  Virginia  and  shall   succeed  to  all  rights,   privileges,
immunities,  franchises, property, debts due, liabilities and obligations of the
Purchaser and the Company in accordance with the provisions of the Virginia Act.
 
    Section 2.3  CONSUMMATION OF  THE MERGER.  As  soon as is practicable  after
the  satisfaction or waiver of the conditions set forth in Article 6 hereof, the
parties hereto will  cause the  Merger to be  consummated by  delivering to  the
State  Corporation  Commission of  the Commonwealth  of Virginia  (the "Virginia
Commission") articles  of merger  (the "Articles  of Merger")  in such  form  as
required by,
 
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and executed and acknowledged in accordance with, the relevant provisions of the
Virginia Act. The Merger shall become effective as of the time that the Virginia
Commission finds that the Articles of Merger comply with the requirements of law
and  that all required fees  have been paid and it  shall issue a certificate of
merger with respect  to the Merger  for record in  accordance with the  relevant
provisions of the Virginia Act (or at such later time specified as the effective
time  in the Articles of Merger). The  term "Effective Time" shall mean the date
and time at which the Merger becomes effective.
 
    Section 2.4  ARTICLES OF INCORPORATION; BYLAWS; DIRECTORS AND OFFICERS.  The
articles of incorporation of the Surviving Corporation shall be the articles  of
incorporation  of the  Company as in  effect immediately prior  to the Effective
Time, until thereafter amended as provided  therein and under the Virginia  Act.
The  Bylaws of the Surviving Corporation shall be the Bylaws of the Purchaser as
in effect immediately prior  to the Effective Time  until thereafter amended  as
provided  therein and  under the  Virginia Act.  The directors  of the Purchaser
immediately prior to  the Effective Time  will be the  initial directors of  the
Surviving  Corporation, and the  officers of the  Purchaser immediately prior to
the Effective Time will be the initial officers of the Surviving Corporation, in
each case until their successors are elected and qualified.
 
    Section 2.5   CONVERSION OF  SECURITIES.   (a)   At the  Effective Time,  by
virtue  of the Merger and  without any action on the  part of the Purchaser, the
Company, the  Surviving  Corporation or  the  holder  of any  of  the  following
securities:
 
        (1) Each Share issued and outstanding immediately prior to the Effective
    Time  (other than Shares  to be cancelled pursuant  to Section 2.5(b) hereof
    and Shares held by any holder who  properly exercises and does not waive  or
    withdraw  dissenter's rights with  respect to his  Shares under the Virginia
    Act ("Dissenting  Shares"))  shall  be cancelled  and  extinguished  and  be
    converted  into and become a right to  receive $16.125 in cash per Share (or
    any such higher price  per Share as  may be paid in  the Offer) without  any
    interest thereon (the "Merger Consideration");
 
        (2)  Each Share which is issued and outstanding immediately prior to the
    Effective Time and  owned by  Varlen, the Purchaser  or the  Company or  any
    direct or indirect subsidiary of Varlen, the Purchaser or the Company, shall
    be cancelled and retired, and no payment shall be made with respect thereto;
    and
 
        (3)  Each share of Common Stock  of the Purchaser issued and outstanding
    immediately prior to the Effective Time  shall be converted into and  become
    one  validly issued, fully  paid and nonassessable share  of Common Stock of
    the Surviving Corporation.
 
    (b) The holders of Dissenting Shares,  if any, shall be entitled to  payment
for  such Shares  only to  the extent  permitted by  and in  accordance with the
applicable provisions  of  the Virginia  Act;  PROVIDED, HOWEVER,  that  if,  in
accordance  with such provisions  of the Virginia Act,  any holder of Dissenting
Shares shall waive or withdraw such right  to payment of the fair value of  such
Shares,  each such Share shall  thereupon be deemed to  have been converted into
and to have  become exchangeable for,  as of  the Effective Time,  the right  to
receive   the  Merger  Consideration  provided  in  Section  2.5(a)(1)  of  this
Agreement. The holders  of Dissenting Shares  shall have and  possess only  such
rights  and privileges as a shareholder of the Company as are provided for under
Article 15 (DISSENTER'S RIGHTS) of the Virginia Act.
 
    Section 2.6  COMPANY  STOCK INCENTIVE PLANS.   (a)   Prior to the  Effective
Time,  the Board of Directors (or,  if appropriate, any committee thereof) shall
adopt, subject to the terms of the Stock Option Plans (as hereinafter  defined),
such resolutions as are necessary or appropriate, if any, to adjust the terms of
all  outstanding employee  stock options  to purchase  Shares (collectively, the
"Options") granted under any stock option plan of the Company (collectively, the
"Stock  Option  Plans",  which  term  shall  include  (without  limitation)  the
Company's  1988 Stock Option Plan, as  amended) to provide for the cancellation,
effective as of the Effective Time, of such Options (and any stock  appreciation
rights  or  limited stock  appreciation  rights) as  set  forth in  this Section
2.6(a). Not later  than immediately prior  to the Effective  Time, each  Option,
whether or not then exercisable or
 
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vested,  shall become  fully exercisable and  vested. The Company  shall use its
reasonable best efforts to insure that each Option outstanding immediately prior
to the Effective Time shall  be cancelled in exchange  for a payment, not  later
than  immediately prior to the Effective Time,  from the Company (subject to any
applicable withholding taxes)  in cash  equal to the  product of  (x) the  total
number  of Shares  subject to  such Option and  (y) the  excess, if  any, of the
Merger Consideration over the exercise price  per Share subject to such  Option.
Any  stock appreciation  rights or  limited stock  appreciation rights  shall be
cancelled as of  immediately prior  to the  Effective Time  without any  payment
therefor.
 
    (b) Prior to the Effective Time, the Board of Directors (or, if appropriate,
any committee thereof) shall adopt, subject to the terms of the Restricted Stock
Plans   (as  hereinafter  defined),   such  resolutions  as   are  necessary  or
appropriate, if any, to adjust the terms of all restricted Shares (collectively,
the "Restricted Shares") granted under any restricted stock plan of the  Company
(collectively,  the "Restricted Stock Plans",  which term shall include (without
limitation) the Company's 1987 Restricted Stock Plan, as amended) to provide for
the cancellation, effective as of the Effective Time, of such Restricted  Shares
as  set forth in  this Section 2.6(b).  Not later than  immediately prior to the
Effective Time,  each Restricted  Share,  whether or  not then  unrestricted  or
vested,  shall become  fully unrestricted,  exercisable and  vested. The Company
shall use  its reasonable  best efforts  to insure  that each  Restricted  Share
outstanding  immediately  prior  to the  Effective  Time shall  be  cancelled in
exchange for the Merger Consideration.
 
    (c) Effective as of the date of this Agreement, the Board of Directors  (or,
if  appropriate, any committee thereof) shall  have taken the appropriate action
with respect to the Company's Employee  Stock Savings Plan (the "Savings  Plan")
to  provide that: (i)  until the earlier to  occur of the  Effective Time or any
termination of this  Agreement, participants  in the  Savings Plan  will not  be
eligible to receive matching Shares on any Shares purchased by such participants
after  the date  of this Agreement,  and (ii)  any right of  participants in the
Savings Plan to receive matching Shares from the Company as of the date of  this
Agreement  accrued as  a result of  Shares purchased  prior to the  date of this
Agreement shall  be  cancelled  in  exchange  for  a  payment,  not  later  than
immediately  prior  to the  Effective  Time, from  the  Company (subject  to any
applicable withholding taxes)  in cash  equal to the  product of  (x) the  total
number of such accrued matching Shares and (y) the Merger Consideration.
 
    (d)  Except as  provided herein,  the Stock  Option Plans,  Restricted Stock
Plans and any other plan, program  or arrangement providing for the issuance  or
grant  of any other interest  in respect of the capital  stock of the Company or
any subsidiary (collectively with  the Stock Option  Plans and Restricted  Stock
Plans,  referred to as  the "Stock Incentive  Plans") shall terminate  as of the
Effective Time. The Company shall use its reasonable best efforts to ensure that
following the Effective Time no holder of an Option or Restricted Shares nor any
other participant in any Stock Incentive Plan shall have any right thereunder to
acquire equity securities  of the Company  or the Surviving  Corporation or  any
subsidiary   thereof  and,  if  requested  by  Varlen,  to  obtain  the  written
acknowledgement of such holders and participants with respect thereto.
 
    Section 2.7  EXCHANGE OF  CERTIFICATES.  (a)   From and after the  Effective
Time,  Harris Trust Company of  New York shall act  as paying agent (the "Paying
Agent") in effecting the  exchange, for the  Merger Consideration multiplied  by
the  number  of  Shares  formerly  represented  thereby,  of  certificates  (the
"Certificates") that, prior to the  Effective Time, represented Shares  entitled
to  payment pursuant to Section 2.5(a) hereof.  At or before the Effective Time,
Varlen or the Purchaser  shall deposit with  the Paying Agent  in trust for  the
benefit  of  the  holders  of Certificates  immediately  available  funds  in an
aggregate amount  (the  "Payment Fund")  equal  to  the product  of  the  Merger
Consideration multiplied by the number of Shares entitled to payment pursuant to
Section  2.5(a) hereof. Upon the surrender  of each such Certificate, the Paying
Agent shall  pay  the  holder  of  such  Certificate  the  Merger  Consideration
multiplied  by the  number of Shares  formerly represented  by such Certificate,
without any interest thereon, in  exchange therefor, and such Certificate  shall
forthwith   be  cancelled.  Until  so   surrendered  and  exchanged,  each  such
Certificate shall represent solely the right to receive the Merger Consideration
multiplied by the number of Shares represented by such Certificate, without  any
interest  thereon. If any cash  is to be paid  to a name other  than the name in
 
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which the Certificate  representing Shares surrendered  in exchange therefor  is
registered,  it shall be a condition to  such payment that the person requesting
such payment shall pay to the Paying Agent any transfer or other taxes  required
by  reason  of the  payment  of such  cash  to a  name  other than  that  of the
registered holder of the Certificate surrendered, or such person shall establish
to the satisfaction of the  Paying Agent that such tax  has been paid or is  not
applicable.  Notwithstanding  the foregoing,  neither the  Paying Agent  nor any
party hereto shall be liable to a holder of Shares for any Merger  Consideration
delivered  to  a  public  official pursuant  to  applicable  abandoned property,
escheat or similar laws.
 
    (b) The Payment Fund shall be invested  by the Paying Agent, as directed  by
Varlen  or the Purchaser,  in: (i) obligations  of, or fully  guaranteed by, the
United States of America or any  agency or instrumentality thereof maturing  not
more  than 12  months after  the date  of acquisition,  (ii) obligations  of any
United States state or any political subdivision of such state, or any agency or
instrumentality of such a state or political subdivision, maturing not more than
12 months after  acquisition that are  rated A  or better by  Standard &  Poor's
Corporation  ("S&P")  or  A  or  better  by  Moody's  Investors  Services,  Inc.
("Moody's"), (iii) commercial paper rated A-1 or better by S&P or P-1 or  better
by  Moody's, and/or (iv) certificates of deposit and bankers' acceptances issued
by, and  time deposits  with,  commercial banks  (whether foreign  or  domestic)
having  capital and surplus in excess of $100,000,000; and any net earnings with
respect thereto shall be  paid to Varlen  as and when  requested by Varlen,  and
Varlen  shall replace any principal lost through any investment made pursuant to
this Section 2.7(b).
 
    (c) The Paying Agent shall, pursuant to irrevocable instructions to be given
by Varlen or the Purchaser, make the payments referred to in Section 2.5(a)  out
of  the Payment Fund. Promptly following the date which is nine months after the
Effective Time, the Paying Agent shall deliver to Varlen all cash,  certificates
and  other documents in its possession relating to the transactions described in
this Agreement, and the Paying Agent's duties shall terminate. Thereafter,  each
holder  of  a  Certificate  formerly representing  a  Share  may  surrender such
Certificate to the Surviving  Corporation or Varlen  and (subject to  applicable
abandoned  property, escheat and similar laws)  receive in exchange therefor the
Merger Consideration, without any  interest thereon, but  shall have no  greater
rights  against  the Surviving  Corporation or  Varlen than  may be  accorded to
general creditors of the Surviving Corporation or Varlen under applicable law.
 
    (d) Promptly after  the Effective  Time, the  Paying Agent  shall mail  each
record  holder  of Certificates  that immediately  prior  to the  Effective Time
represented Shares a form of letter  of transmittal and instructions for use  in
surrendering such Certificates and receiving the Merger Consideration therefor.
 
    (e)  After the  Effective Time,  there shall  be no  transfers on  the stock
transfer  books  of  the  Surviving   Corporation  of  any  Certificates   which
theretofore  represented  Shares.  If, after  the  Effective  Time, Certificates
formerly representing Shares are presented  to the Surviving Corporation or  the
Paying   Agent,  they   shall  be  cancelled   and  exchanged   for  the  Merger
Consideration, as provided in this Article  2, subject to applicable law in  the
case of Dissenting Shares.
 
     ARTICLE 3:  REPRESENTATIONS AND WARRANTIES OF VARLEN AND THE PURCHASER
 
    Varlen  and the Purchaser each hereby represents and warrants to, and agrees
with, the Company as follows:
 
    Section 3.1    ORGANIZATION AND  QUALIFICATION.    Each of  Varlen  and  the
Purchaser is a corporation duly organized, validly existing and in good standing
under  the  laws of  its  jurisdiction of  incorporation  and has  the requisite
corporate power to carry  on its respective business  as now conducted. Each  of
Varlen  and  the Purchaser  is duly  qualified  as a  foreign corporation  to do
business, and is in good standing,  in each jurisdiction where the character  of
its  properties  owned or  leased or  the  nature of  its activities  makes such
qualification necessary,  except for  failures to  be so  qualified or  in  good
standing  which would  not, in the  aggregate, materially impair  the ability of
Varlen and the Purchaser to
 
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perform their  obligations  hereunder. The  Purchaser  has not  engaged  in  any
material  business  or  activity  of  any kind,  or  entered  into  any material
agreement or arrangement  with any  person or  entity or  incurred, directly  or
indirectly,  any material liabilities or  obligations, except in connection with
its incorporation or with the negotiation  of this Agreement and the  agreements
relating  to the financing of  the Offer, the Merger  and the other transactions
contemplated thereby (the "Financing") and the consummation of the  transactions
contemplated hereby and thereby.
 
    Section  3.2  AUTHORITY RELATIVE TO THIS  AGREEMENT.  Each of Varlen and the
Purchaser has the  requisite corporate power  and authority to  enter into  this
Agreement  and  to  perform  its obligations  hereunder  and  to  consummate the
transactions contemplated hereby. The execution  and delivery of this  Agreement
by  Varlen and the Purchaser and the consummation by Varlen and the Purchaser of
the transactions contemplated hereby have been duly authorized by the respective
Boards of  Directors  of  Varlen  and  the  Purchaser  and  no  other  corporate
proceedings  on the part of  Varlen or the Purchaser  are necessary to authorize
the execution, delivery and performance  of this Agreement and the  transactions
contemplated  hereby. This  Agreement has  been duly  executed and  delivered by
Varlen and the Purchaser and constitutes a valid and binding obligation of  each
of them, enforceable against each of them in accordance with its terms except to
the  extent that  its enforceability  may be  limited by  applicable bankruptcy,
insolvency, reorganization or other laws affecting the enforcement of creditors'
rights generally and by general equitable principles.
 
    Section 3.3  COMPLIANCE.   (a)  Neither the  execution and delivery of  this
Agreement  by  Varlen and  the Purchaser  nor  the consummation  by them  of the
transactions contemplated hereby,  nor compliance  by Varlen  and the  Purchaser
with  any of the provisions hereof, does or will: (i) violate, conflict with, or
result in a breach  of any provision  of, or constitute a  default (or an  event
which,  with notice or lapse of time or both, would constitute a default) under,
or result  in  the termination  or  right of  amendment  of, or  accelerate  the
performance  required by,  or result in  a right of  termination or acceleration
under, or  result in  the creation  of any  lien, security  interest, charge  or
encumbrance  upon any of the properties or  assets of Varlen or the Purchaser or
any other  direct or  indirect subsidiary  of Varlen  under, any  of the  terms,
conditions or provisions of (x) the charter documents or bylaws of Varlen or the
Purchaser  or any other direct  or indirect subsidiary of  Varlen or, (y) except
for the Revolving Credit  Agreement, dated as of  December 6, 1993, as  amended,
among Varlen, the subsidiaries thereof party thereto, the lenders named therein,
and  The First National Bank of Chicago (the "Agent Bank"), as agent, which will
be refinanced simultaneously with the consummation of the Offer, any note, bond,
mortgage,  indenture,  deed  of  trust,  license,  lease,  agreement  or   other
instrument or obligation to which Varlen or the Purchaser or any other direct or
indirect  subsidiary of Varlen  is a party, or  to which any of  them, or any of
their respective  properties or  assets,  may be  subject,  or (ii)  subject  to
compliance  with the  statutes and  regulations referred  to in  Section 3.3(b),
violate any judgment, ruling, order, writ, injunction, decree, statute, rule  or
regulation applicable to Varlen or the Purchaser or any other direct or indirect
subsidiary of Varlen or any of their respective properties or assets; except, in
the  case  of  each of  clauses  (i)(y)  and (ii)  above,  for  such violations,
conflicts, breaches,  defaults,  terminations,  accelerations  or  creations  of
liens,  security  interests, charges  or encumbrances  which, in  the aggregate,
would not materially impair the ability  of Varlen and the Purchaser to  perform
their obligations hereunder.
 
    (b)  Other than in connection  with or in compliance  with the provisions of
the Virginia Act, the Securities Act of 1933, as amended (the "Securities Act"),
the Exchange  Act,  the  "take-over"  or  "blue sky"  laws  of  any  state,  the
Hart-Scott-Rodino  Antitrust Improvements Act of 1976, as amended, and the rules
and regulations thereunder (the "HSR Act")  and the laws and regulations of  any
states  or foreign jurisdictions under which a filing or consent may be required
for Varlen's acquisition of control of  the Company or any of its  subsidiaries,
and except for any notices, filings, authorizations, consents or approvals which
are   required  because  of  the  regulatory  status  of  the  Company  and  its
subsidiaries or  facts specifically  pertaining to  them, no  notice to,  filing
with,  or authorization, consent or approval  of, any domestic or foreign public
body or authority is necessary for  the consummation by Varlen or the  Purchaser
of  the transactions contemplated by this Agreement, except where the failure to
give
 
                                       7
<PAGE>
such notices, make such filings, or obtain authorizations, consents or approvals
would, in the  aggregate, not materially  impair the ability  of Varlen and  the
Purchaser to perform their obligations hereunder.
 
    Section  3.4   FINANCING.   Varlen has  received (and  has furnished  to the
Company copies  of)  written  commitments  from one  or  more  banks  and  other
financial  institutions  (as  the  case  may be,  the  "Banks")  to  provide the
Financing. The Schedule 14D-1 will contain true and accurate descriptions of the
commitments of the Banks. The Financing will not violate Regulations G, T, U  or
X of the Board of Governors of the Federal Reserve System.
 
    Section  3.5  BROKERS AND FINDERS.  Neither Varlen nor the Purchaser nor any
of their respective officers,  directors, employees or  agents has employed  any
broker,  finder, investment  banker or other  person, and none  of the foregoing
have incurred  any liability  for any  brokerage fees,  commissions or  finders'
fees,  in  connection with  the  transactions contemplated  hereby,  except that
Varlen and the Purchaser  have engaged Lehman Brothers  Inc. in connection  with
the  transactions  contemplated hereby  and  the Agent  Bank  (and/or affiliates
thereof) in connection with  the Financing. The Schedule  14D-1 contains a  true
and  accurate  description of  the fee  arrangements  between Varlen  and Lehman
Brothers and the Agent Bank (and any affiliates thereof).
 
           ARTICLE 4:  REPRESENTATIONS AND WARRANTIES OF THE COMPANY
 
    The Company hereby represents and warrants  to, and agrees with, Varlen  and
the Purchaser as follows:
 
    Section  4.1  ORGANIZATION AND  QUALIFICATION.  The Company  and each of its
Subsidiaries (as hereinafter defined) is  a corporation duly organized,  validly
existing and in good standing under the laws of the Commonwealth of Virginia and
has  the requisite power and authority (corporate and otherwise) to carry on its
business as it is now being conducted. The subsidiaries listed in Exhibit 21  of
the  Company's Annual Report on Form 10-K for the fiscal year ended December 31,
1995 (the "Latest 10-K") and those Previously Disclosed (as hereinafter defined)
are  the  only  subsidiaries  of  the  Company  (such  subsidiaries  listed  and
Previously  Disclosed, "Subsidiaries"). The Company  and each Subsidiary is duly
qualified as a foreign corporation to do  business, and is in good standing,  in
each  jurisdiction where the character of its  properties owned or leased or the
nature of its activities makes such qualification necessary, except for failures
to be so  qualified or in  good standing which  do not have  a Material  Adverse
Effect (as hereinafter defined). Copies of the Charter and Bylaws of the Company
have  heretofore been delivered to Varlen and  the Purchaser and such copies are
accurate and complete as of the date hereof. For purposes of this Agreement,  an
occurrence,  event,  fact  or  circumstance  (or any  group,  series  or  set of
occurrences, events,  facts or  circumstances) ("Occurrences")  has a  "Material
Adverse  Effect" if such Occurrences, individually or in the aggregate, resulted
in, results in or  may reasonably be  expected to result  in a material  adverse
effect  on  or  change  in:  (i)  the  business,  assets,  properties, condition
(financial or otherwise), results of operations or prospects of (x) the  Company
or  (y) the Company and  the Subsidiaries taken as a  whole, (ii) the ability of
Varlen or the  Purchaser to  consummate the  Offer or  the Merger  or the  other
transactions contemplated hereby, or (iii) the ability of the Company to perform
its  obligations hereunder.  For purposes of  this Agreement, a  fact shall have
been "Previously Disclosed"  if it is  contained in the  Latest 10-K, the  Proxy
Statement  furnished by the  Company to its shareholders  in connection with the
Company's 1996 Annual  Meeting of Shareholders  (the "Latest Proxy  Statement"),
the  Company's Quarterly  Report on  Form 10-Q for  the quarter  ended March 31,
1996, as amended prior to the date hereof (the "Latest 10-Q"), or was  otherwise
disclosed  in writing by  the Company to  Varlen prior to  the execution of this
Agreement.
 
    Section 4.2  CAPITALIZATION.   The authorized capital  stock of the  Company
consists  of: (i) 15,000,000 Shares,  of which, as of  June 14, 1996, 10,207,440
Shares (including  Restricted  Shares) were  issued  and outstanding,  and  (ii)
1,000,000  shares of Preferred Stock,  par value $1.00 per  share, none of which
are issued or outstanding.  All of the issued  and outstanding Shares have  been
validly
 
                                       8
<PAGE>
issued and are fully paid and nonassessable and free of preemptive rights. As of
June  14, 1996,  the Company  had outstanding:  (1) Options  to purchase 442,000
Shares heretofore granted under the Company's Stock Option Plans and like number
of Shares  reserved for  issuance  upon the  exercise  thereof, and  (2)  62,576
Restricted Shares heretofore granted under the Company's Restricted Stock Plans.
Since  January  31, 1996,  the Company  has not  issued any  Options, Restricted
Shares or shares of  its capital stock except  upon exercise of Options  granted
prior  to January 31,  1996 and except  as Previously Disclosed  with respect to
Shares issued under the Savings Plan. Except  as set forth above: (A) there  are
no  shares of capital stock of the Company authorized, issued or outstanding and
(ii) there are no outstanding  subscriptions, options, warrants, calls,  rights,
convertible  securities  or other  agreements  or commitments  of  any character
obligating the Company or any of its Subsidiaries to issue, transfer or sell any
shares of the  capital stock  or any securities  convertible into,  exchangeable
for,  or evidencing the right to subscribe  for, any shares of the capital stock
of the Company.  Following the Merger,  the Company will  have no obligation  to
issue,  transfer or sell any  shares of its capital  stock pursuant to any Stock
Incentive  Plan,  other  employee  benefit  plan,  or  otherwise.  All  of   the
outstanding  shares  of capital  stock  of each  of  the Subsidiaries  have been
validly issued and are fully paid and nonassessable and are owned by either  the
Company  or another  Subsidiary free and  clear of all  pledges, liens, security
interests, charges,  claims, equities,  options, proxies,  voting  restrictions,
rights  of  first refusal  and other  limitations on  disposition or  voting and
encumbrances of  any  kind. There  are  no outstanding  subscriptions,  options,
warrants,   calls,  rights,  convertible  securities   or  other  agreements  or
commitments of any character relating to the issued or unissued capital stock of
any of  the Subsidiaries  or securities  convertible into,  exchangeable for  or
evidencing  the right  to subscribe  for any  shares of  such capital  stock, or
otherwise obligating any Subsidiary to issue, transfer or sell any such  capital
stock  or other securities.  There are no  voting trusts or  other agreements or
understandings to which the Company or any  of its subsidiaries is a party  with
respect  to  the voting  of  the capital  stock  of the  Company  or any  of its
Subsidiaries.
 
    Section 4.3   CAPITALIZATION  OF SUBSIDIARIES.   The  name, jurisdiction  of
incorporation or organization and percentage of outstanding capital stock owned,
directly or indirectly, by the Company, with respect to each direct and indirect
Subsidiary  of the Company have been  Previously Disclosed. Except as Previously
Disclosed, the Company  and its Subsidiaries  own no direct  or indirect  equity
interest  in any corporation (other than  direct or indirect subsidiaries of the
Company), partnership, joint venture or other entity, domestic or foreign, which
in the aggregate are  material to the  Company and its  Subsidiaries taken as  a
whole.
 
    Section 4.4  AUTHORITY RELATIVE TO AGREEMENT.  The Company has the requisite
power  and authority (corporate and otherwise)  to enter into this Agreement, to
perform  its   obligations  hereunder   and  to   consummate  the   transactions
contemplated hereby. The execution and delivery of this Agreement by the Company
and  the consummation  by it of  the transactions contemplated  hereby have been
duly authorized by the  Board of Directors  of the Company  and, except for  the
requisite  approval by the holders of Shares entitled to vote (if required under
the Virginia Act), or as  provided herein, no other  proceedings on the part  of
the  Company are necessary to authorize  the execution, delivery and performance
of this Agreement and the  transactions contemplated hereby. This Agreement  has
been  duly executed  and delivered  by the Company  and constitutes  a valid and
binding obligation of the Company, enforceable against the Company in accordance
with its terms, except to the extent  that its enforceability may be limited  by
applicable  bankruptcy, insolvency,  reorganization or other  laws affecting the
enforcement of creditors' rights generally and by general equitable principles.
 
    Section 4.5  NO CONFLICTS.  (a)  Neither the execution and delivery of  this
Agreement   by  the  Company,  nor  the  consummation  by  the  Company  of  the
transactions contemplated hereby, nor compliance by the Company with any of  the
provisions  hereof, does  or will:  (i) violate, conflict  with, or  result in a
breach of any provision  of, or constitute  a default (or  an event which,  with
notice or lapse of time or both, would constitute a default) under, or result in
the termination or right of amendment of, or accelerate the performance required
by,  or result in a right of termination or acceleration under, or result in the
creation of any lien, security interest,  charge or encumbrance upon any of  the
properties
 
                                       9
<PAGE>
or  assets of  the Company or  any of its  Subsidiaries under any  of the terms,
conditions or provisions of: (x) the Charter or Bylaws of the Company or any  of
its  Subsidiaries, or  (y) any note,  bond, mortgage, indenture,  deed of trust,
license, lease, agreement or other instrument or obligation to which the Company
or any of its subsidiaries is  a party or to which any  of them or any of  their
respective  properties or assets  may be subject, or  (ii) subject to compliance
with the statutes  and regulations referred  to in Section  4.5(b), violate  any
judgment,  ruling, order, writ, injunction,  decree, statute, rule or regulation
applicable to  the Company  and  its Subsidiaries  or  any of  their  respective
properties  or  assets, except  in  the case  of  clause (i)(y)  above,  for the
Company's 7.50% Senior Notes due 2002 and the Company's 7.06% note due 2003, and
except, in  the  case  of each  of  clauses  (i)(y) and  (ii)  above,  for  such
violations,   conflicts,  breaches,  defaults,  terminations,  accelerations  or
creations of liens, security  interests, charges or  encumbrances which, in  the
aggregate, do not have a Material Adverse Effect.
 
    (b)  Other than in connection  with or in compliance  with the provisions of
the Virginia Act, the Securities Act, the Exchange Act, the "takeover" or  "blue
sky"  laws of any  state, the HSR Act  and regulations of  any states or foreign
jurisdictions under  which a  filing or  consent may  be required  for  Varlen's
acquisition  of control of the Company or any of its Subsidiaries, no notice to,
filing with, or authorization, consent or  approval of, any domestic or  foreign
public body or authority is necessary for the consummation by the Company of the
transactions  contemplated by this  Agreement, except where  the failure to give
such notices, make such filings or obtain authorizations, consents or  approvals
do not have a Material Adverse Effect.
 
    Section  4.6  COMPANY REPORTS AND  FINANCIAL STATEMENTS.  Since December 31,
1995, the Company has filed with  the Commission all forms, reports,  statements
and  documents required to be filed by it pursuant to the Securities Act and the
rules and regulations promulgated thereunder and the Exchange Act and the  rules
and  regulations  promulgated thereunder  (collectively, the  "Company Filings",
which term shall include (without limitation)  the Latest 10-K, Latest 10-Q  and
Latest  Proxy Statement),  all of  which complied  as of  the date  filed in all
material respects with all applicable requirements of the Securities Act and the
Exchange Act (as appropriate). None of the Company Filings as of the dates  they
were  respectively filed with the Commission contained any untrue statement of a
material fact or omitted to state a material fact required to be stated  therein
or  necessary  in  order  to  make  the  statements  therein,  in  light  of the
circumstances  under  which  they  were  made,  not  misleading.  Each  of   the
consolidated  balance sheets included in the Company Filings (including, in each
case, any related notes) fairly presented the consolidated financial position of
the Company and  its consolidated subsidiaries  as of its  respective dates  and
each  of the  consolidated statements of  income, shareholders'  equity and cash
flows included in  the Company  Filings (including,  in each  case, any  related
notes) fairly presented the consolidated results of operations and cash flows of
the  Company and its Subsidiaries for  the respective periods set forth therein,
in each  case  in  accordance  with  generally  accepted  accounting  principles
consistently  applied during the  periods involved, subject (in  the case of the
unaudited interim financial statements) to normal year-end audit adjustments.
 
    Section 4.7   LITIGATION.  Except  as Previously Disclosed,  as of the  date
hereof  there are no claims,  actions, proceedings or, to  the best knowledge of
the  Company,  investigations  pending  against  the  Company  or  any  of   its
Subsidiaries,  or  any  properties  or  rights of  the  Company  or  any  of its
Subsidiaries, before  any  court,  administrative,  governmental  or  regulatory
authority  or body  (collectively "Litigations"):  (i) that  are required  to be
disclosed in any  Company Filing  and are  not so  disclosed, or  (ii) that,  if
adversely decided, would have a Material Adverse Effect.
 
    Section  4.8  EMPLOYEE  BENEFIT PLANS.   (a)  The  Company Filings contain a
true and  complete  summary  or  list of  or  otherwise  describe  all  material
employment  contracts  and  other  employee benefit  arrangements  to  which the
Company or  any of  its Subsidiaries  is a  party with  "change of  control"  or
similar   provisions  and  all  severance  agreements  with  executive  officers
(collectively, the "Change of Control Benefit and Severance Arrangements").  The
Company  has Previously Disclosed  all other employee  benefit plans, agreements
and arrangements which are maintained or contributed to by the Company or any of
its Subsidiaries for  its employees, officers  or directors, including  (without
 
                                       10
<PAGE>
limitation)  all  bonus, incentive  compensation, deferred  compensation, profit
sharing, stock option, stock purchase, insurance, pension, retirement and  other
employee  benefit plans (collectively,  the "Benefit Plans").  True and complete
copies of all  such Change  of Control  Benefit and  Severance Arrangements  and
Benefit  Plans,  including (but  not limited  to)  any trust  instruments and/or
insurance contracts, if any, forming a part thereof, and all amendments thereto,
have been delivered to Varlen. The Company's estimate of the total amount of all
payments which may be payable under the Change of Control Benefit and  Severance
Arrangements,  other than upon cancellation of the Options and Restricted Shares
pursuant to Section 2.6, is $3,435,000.
 
    (b) The Company has delivered to Varlen copies of each of its Benefit  Plans
which  are employee pension benefit plans (within the meaning of Section 3(2) of
the Employee  Retirement Income  Security Act  of 1974,  as amended  ("ERISA")),
including  all amendments  thereto to  date ("Employee  Pension Benefit Plans").
Except as  required  by law  or  as Previously  Disclosed,  there have  been  no
amendments  or other changes in such  Employee Pension Benefit Plans which would
for any period after December 31, 1995 increase coverage or benefits  thereunder
in  any material  respect. Except  as Previously  Disclosed, each  such Employee
Pension Benefit Plan: (i) is in  material compliance with all of the  provisions
of  ERISA and the Internal  Revenue Code of 1986,  as amended (the "Code"), (ii)
has no accumulated funding deficiency (within  the meaning of Section 302(a)  of
ERISA), whether or not waived, and (iii) has not been involved in any non-exempt
prohibited  transaction within  the meaning of  Section 406 of  ERISA or Section
4975 of the Code. Except as Previously Disclosed, neither the Company nor any of
its Subsidiaries has  incurred or has  any reasonable basis  to believe it  will
incur  any material liability  to the Pension  Benefit Guaranty Corporation with
respect to any  funded Employee Pension  Benefit Plan. Certified  copies of  the
most  recent actuarial statements with respect  to each Employee Pension Benefit
Plan subject to Title IV of ERISA have been previously provided to Varlen. Since
December 31, 1991, neither the Company nor  any of its Subsidiaries has had  any
obligation  to  contribute  to any  multiemployer  plan (as  defined  in Section
4001(a)(3) of ERISA). Neither the Company  nor any of its Subsidiaries  provides
benefits  under any employee  welfare benefit plan  (as such term  is defined in
Section 3(1) of ERISA)  to any person following  the termination of  employment,
except  for: (A) "COBRA" continuation coverage  obligations under Section 601 et
seq. of ERISA and Section 4980B of the Code, (B) the Company's and Subsidiaries'
severance plan for salaried employees, (C) retiree life insurance coverage,  and
(D)  retiree  medical  and  dental  coverages  to  age  65.  The  Company's  and
Subsidiaries' aggregate annual expense  for the fiscal  year ended December  31,
1995 for all employee welfare benefit plans (x) providing for health and medical
benefits  for  the  employees  of  the Company  and  its  Subsidiaries,  and (y)
described  in  the  foregoing  sentence,  did  not  exceed  (in  the  aggregate)
$2,547,000.
 
    Section 4.9  TAXES.  Except as Previously Disclosed, the Company and each of
its  Subsidiaries (collectively, the "Group") has  filed or been included in all
federal income  tax  returns  and other  material  returns  (collectively,  "Tax
Returns")  relating  to  Taxes (as  hereinafter  defined) required  to  be filed
(taking into  account any  extensions of  time for  filing or  sending such  Tax
Returns).  Except as Previously Disclosed, the  Group has paid or made provision
for (by a tax  accrual or tax  reserve on the  most recent consolidated  balance
sheet of the Group contained in the Company Filings), all Taxes (except for such
Taxes which if not so paid or provided for do not have a Material Adverse Effect
in  respect of all taxable  periods or portions thereof  ending on or before the
date of such balance sheets. Except as Previously Disclosed, any material  Taxes
incurred  or accrued since December 31, 1992  have arisen in the ordinary course
of business. Except as Previously Disclosed, the Group is not delinquent in  the
payment  of  any  federal  income  or other  material  Taxes  and  there  are no
outstanding deficiencies,  assessments or  written proposals  for assessment  of
federal  income or other  material Taxes proposed,  asserted or assessed against
the Group; and,  to the  best knowledge  of the  Company, there  are no  events,
occurrences,  facts or  circumstances which could  provide a basis  for any such
deficiency, assessment or proposal. As used  herein, "Taxes" means: (i) all  net
income,  gross income, gross receipts, sales, use, transfer, franchise, profits,
withholding,  payroll,  employment,  excise,  severance,  property  or  windfall
profits taxes, or other taxes of any kind whatsoever, together with any interest
and  any penalties, additions to tax or additional amounts imposed by any taxing
authority (federal,
 
                                       11
<PAGE>
state, local  or foreign)  upon the  Company  or any  of its  Subsidiaries  with
respect  to all periods  or portions thereof  ending on or  before the Effective
Time, and/or (ii) any liability  of the Company or  any of its Subsidiaries  for
the  payment of any amounts  of the type described  in the immediately preceding
clause (i) as a result of being a member of an affiliated or combined group.
 
    Section 4.10  ABSENCE  OF CERTAIN CHANGES.   Except as contemplated by  this
Agreement  or as  Previously Disclosed,  since December  31, 1995  there has not
been: (i)  any material  adverse  change in  the business,  assets,  properties,
condition  (financial or otherwise),  results of operations  or prospects of (x)
the Company or (y) the Company and  the Subsidiaries taken as a whole; (ii)  any
damage,  destruction  or loss  (whether or  not covered  by insurance)  having a
Material  Adverse  Effect;  (iii)  any  change  by  the  Company  in  accounting
principles or methods except insofar as may be required by a change in generally
accepted  accounting principles; (iv) any  declaration, payment or setting aside
for payment of any dividend or any redemption, purchase or other acquisition  of
any  shares of capital stock or securities of the Company other than as provided
or permitted in this Agreement and  except for regular quarterly cash  dividends
not  in excess of $.07 per Share on the Shares; (v) any return of any capital or
other distribution of assets  to shareholders of the  Company as such; (vi)  any
direct  or  indirect  material purchase  or  other acquisition  of  stock, other
securities or other  assets (other than  purchases of such  other assets in  the
ordinary  course of business  and at arms-length purchase  prices) of any person
and any direct or indirect loan,  advance (other than advances to employees  for
travel  expenses in the ordinary course  of business) or capital contribution to
any person  in which  the  Company or  any of  its  Subsidiaries has  an  equity
interest;  (vii) any grant  of any general  increase in the  compensation of its
directors, officers or employees or any increase in the compensation payable  or
to  become  payable to  any such  director, officer  or employee  (including, in
either case, any such increase pursuant to any bonus, pension, profit-sharing or
other plan  or  commitment  or  any Change  of  Control  Benefit  and  Severance
Arrangement),  except for  (a) reasonable  increases in  the ordinary  course of
business and consistent with past practice (but excluding increases pursuant  to
any  Change of  Control Benefit  and Severance  Arrangement), and  (b) increases
pursuant to collective bargaining agreements in existence as of the date of this
Agreement; or (viii) any agreement to take, whether in writing or otherwise, any
action  which,  if  taken  prior  to  the  date  hereof,  would  have  made  any
representation or warranty in this Article 4 untrue or incorrect in any material
respect. Since December 31, 1995 the Company and its Subsidiaries have conducted
their respective businesses only in the ordinary course.
 
    Section  4.11   BROKERS AND  FINDERS.   Neither the  Company nor  any of its
officers, directors,  employees  or  agents has  employed  any  broker,  finder,
investment  banker or other person, and none  of the foregoing have incurred any
liability for any brokerage  fees, commissions or  finders' fees, in  connection
with  the transactions contemplated hereby, except  that the Company has engaged
Wheat, First Securities, Inc. to determine the fairness, from a financial  point
of  view, of the Offer price and Merger Consideration to the public shareholders
of the Company. The Schedule 14D-9 will contain a true and accurate  description
of the fee arrangements between the Company and Wheat, First Securities, Inc.
 
    Section  4.12  LIABILITIES.   Except as disclosed in  the Company Filings or
otherwise Previously Disclosed, the Company and its Subsidiaries do not have any
material direct  or  indirect  indebtedness,  liability,  claim,  loss,  damage,
deficiency,  obligation or responsibility, fixed or unfixed, choate or inchoate,
liquidated or unliquidated, secured or unsecured, accrued, absolute,  contingent
or   otherwise  ("Liabilities"),  of  a  kind  required  by  generally  accepted
accounting principles to be set forth  in a financial statement, other than  (i)
liabilities  fully and adequately reflected or reserved against on the Company's
balance sheet included in the Latest 10-Q, (ii) liabilities incurred since March
31, 1996 in the ordinary course of business, and (iii) liabilities which are not
material to the Company and its Subsidiaries taken as a whole.
 
    Section 4.13  CONTRACTS.   All contracts and  other agreements to which  the
Company  or any  of its Subsidiaries  is a  party or by  or to  which either the
Company or any  of its Subsidiaries  or its  or their assets  or properties  are
bound or subject and that are or were required to have been filed as exhibits to
the  Company  Filings  have been  so  filed.  All of  such  contracts  and other
agreements are in full force
 
                                       12
<PAGE>
and effect and  neither the  Company nor  any subsidiary  of the  Company is  in
default  under any of  them, nor, to the  best knowledge of  the Company, is any
other party to any such contract or other agreement in default thereunder,  nor,
except  as provided in Section 4.5, does any condition exist that with notice or
lapse of  time or  both would  constitute a  default thereunder,  nor would  the
transactions  contemplated  hereby  constitute  a  default  thereunder  if  such
defaults, individually or in the aggregate, have a Material Adverse Effect.
 
    Section 4.14   BOARD ACTIONS.   The Board  of Directors of  the Company  has
taken  the actions  specified in Section  1.2(a) hereof. Neither  the Offer, the
Merger nor any of the other  transactions contemplated by this Agreement are  or
after  the date hereof will be subject to:  (1) any of the restrictions or other
provisions of restrictions of Article 14, Sections 13.1-725-13.1-728 (AFFILIATED
TRANSACTIONS) of  the Virginia  Act; (2)  any of  the supermajority  shareholder
voting  provisions of  Article I  of the  Company's Charter;  or (3)  any of the
restrictions   or   other   provisions    of   Article   14.1,    SectionSection
13.1-728.1-13.1-728.9  (CONTROL  SHARE ACQUISITIONS)  of  the Virginia  Act. The
Company has heretofore delivered to Varlen  and the Purchaser a written  opinion
of  Virginia  counsel  to the  Company  reasonably satisfactory  to  Varlen with
respect to the foregoing matters. Neither the Company nor any of the members  of
its  Board of Directors (including the "disinterested director" members thereof)
shall take any  action to: (A)  subject Varlen, the  Purchaser, their direct  or
indirect  subsidiaries, the Offer,  the Merger or any  of the other transactions
contemplated by this Agreement to be subject to the provisions of any  takeover,
affiliated transaction, business combination, control share acquisition or other
provision  of: (i)  law or  regulation adopted  by the  Commonwealth of Virginia
(including the Virginia Act)  or any department or  agency thereof, or (ii)  the
Charter  or  Bylaws  of the  Company,  or  (B) increase  (above  two-thirds) the
shareholder vote required to approve the Merger.
 
    Section 4.15  CASH AND CASH EQUIVALENTS.   The aggregate amount of cash  and
cash  equivalents held by the  Company and its Subsidiaries  as reflected in the
financial reports at the end of May 1996 was not less than $13,665,000.
 
                         ARTICLE 5:  CERTAIN COVENANTS
 
    Section  5.1    CONDUCT  OF   BUSINESS.    Except  as  otherwise   expressly
contemplated hereby or as Previously Disclosed, the Company covenants and agrees
that,  unless Varlen or the Purchaser shall otherwise agree in writing, prior to
the Effective Time or such earlier time as designees of the Purchaser constitute
a majority of the Board of Directors of the Company:
 
        (A) the business of the Company and its Subsidiaries shall be  conducted
    only  in, and the Company  and its Subsidiaries shall  not take any material
    action except in, the ordinary course  of business and consistent with  past
    practice,  and the Company shall use its reasonable best efforts to maintain
    and preserve  its  and  its  Subsidiaries'  business  organization,  assets,
    employees and advantageous business relationships;
 
        (B)  neither the Company nor any of its Subsidiaries shall: (1) amend or
    propose to amend its articles of incorporation or bylaws; (2) split, combine
    or reclassify any shares of its capital  stock or declare, set aside or  pay
    any  dividend payable in cash, stock or property with respect to its capital
    stock, except as permitted by Section 4.10 and except for any dividend by  a
    wholly-owned  Subsidiary  payable  to the  Company  or  another wholly-owned
    Subsidiary; (3) issue, sell, pledge,  dispose of or encumber any  additional
    shares  of, or  securities convertible  into or  exchangeable or exercisable
    for, or  options, warrants,  calls, commitments  or rights  of any  kind  to
    acquire,  any  capital stock  of  any class  of the  Company  or any  of its
    Subsidiaries other  than  Shares which  the  Company is  required  to  issue
    pursuant  to the Options outstanding on  June 14, 1996; (4) transfer, lease,
    license, sell, mortgage, pledge, dispose of or encumber any material  assets
    of  the Company or any of its Subsidiaries other than in the ordinary course
    of business  and consistent  with past  practices; (5)  redeem, purchase  or
    otherwise  acquire directly or indirectly any  of the capital stock or other
    equity securities  of  the Company;  (6)  adopt  a plan  of  liquidation  or
    resolutions    providing   for   the   liquidation,   dissolution,   merger,
    consolidation or other reorganization of the Company or
 
                                       13
<PAGE>
    any of its Subsidiaries, except for mergers among wholly-owned Subsidiaries;
    (7) acquire (by merger, consolidation or acquisition of stock or assets) any
    corporation, partnership or other business organization or division  thereof
    or make any investment with respect thereto; (8) directly or indirectly: (i)
    incur  or modify any  long-term indebtedness or  short-term indebtedness for
    money borrowed or other material liability other than in the ordinary course
    of business and  consistent with  past practice, (ii)  incur any  additional
    indebtedness  for  money  borrowed  other than  in  the  ordinary  course of
    business and  consistent with  past practice,  or (iii)  make any  loans  or
    advances  other than in the ordinary  course of business and consistent with
    past practice and intercompany loans and advances among the Company and  its
    wholly-owned  Subsidiaries;  (9)  pay,  discharge  or  satisfy  any  claims,
    liabilities or  obligations (absolute,  accrued, contingent  or  otherwise),
    other  than the  payment, discharge  or satisfaction  of liabilities  in the
    ordinary course of business and  consistent with past practice; (10)  waive,
    release,  grant or transfer any  rights of value or  modify or change in any
    material respect any  existing license, lease,  contract or other  document,
    other  than  in the  ordinary course  of business  and consistent  with past
    practice; or (11) enter into  any material commitment or transaction,  other
    than in the ordinary course of business and consistent with past practice;
 
        (C) neither the Company nor any of its Subsidiaries shall: (1) grant any
    increase  in the compensation payable or to become payable by the Company or
    any of its Subsidiaries to any  of its directors, executive officers or  key
    employees  or  adopt any  new, or  amend or  otherwise increase  the amounts
    payable  or  to  become  payable   under  any  existing,  bonus,   incentive
    compensation,   severance,  deferred  compensation,  profit  sharing,  stock
    option, stock  purchase, insurance,  pension, retirement  or other  employee
    benefit  plan (including (but not limited to) the granting of stock options,
    stock appreciation rights or restricted stock),  or (2) enter into or  amend
    any employment or change-in-control agreement with, or, except in accordance
    with  the existing written policies and agreements of the Company, grant any
    severance or termination  pay to any  director, officer or  employee of  the
    Company or any of its Subsidiaries; and
 
        (D)  neither the  Company nor  any of  its Subsidiaries  shall agree, in
    writing or otherwise,  to take any  of the foregoing  actions or any  action
    which  would make  any representation or  warranty of the  Company untrue or
    incorrect in any material respect.
 
    Section 5.2  PROXY  STATEMENT.  Promptly after  the date of this  Agreement,
the  Company and Varlen shall  properly prepare and the  Company shall file with
the Commission  as  soon  as  is  reasonably  practicable  a  preliminary  proxy
statement,  together  with  a  form  of proxy,  or  (as  directed  by  Varlen) a
preliminary information statement, with  respect to a  meeting of the  Company's
shareholders  at which such shareholders will be asked to approve this Agreement
and the Merger  (if and  to the  extent required by  the Virginia  Act) and,  as
promptly  as  practicable thereafter  or as  otherwise  directed by  Varlen, and
subject to compliance  with the  rules and  regulations of  the Commission,  the
Company  shall mail  a definitive proxy  statement or  information statement (as
directed by Varlen) and related materials to the shareholders of the Company (if
and to the extent required by the Virginia Act and/or the Exchange Act). As used
herein, the  term  "Proxy  Statement"  shall  mean  such  proxy  or  information
statement  at the time it initially is  mailed to the Company's shareholders and
all amendments or supplements  thereto, if any, similarly  filed and mailed.  As
soon as practicable after the date hereof, the Company and Varlen shall promptly
and properly prepare and file any other filings required under the Exchange Act,
the  Securities Act or any  other federal or state  securities or corporate laws
relating to the Offer, the Merger and the other transactions contemplated herein
(the "Other Filings"). Each of the parties hereto shall notify the other parties
hereto promptly of the receipt  by it of any comments  of the Commission and  of
any  request  by  the Commission  for  amendments  or supplements  to  the Proxy
Statement or by the Commission or  any other governmental official with  respect
to  any Other Filing  or for additional  information, and will  supply the other
parties  hereto  with  copies   of  all  correspondence   between  it  and   its
representatives, on the one hand, and the Commission or the members of its staff
or  any other appropriate governmental official, on the other hand, with respect
to the  Proxy Statement  and any  Other  Filings. The  Company, Varlen  and  the
Purchaser  each shall use its reasonable best  efforts to obtain and furnish the
information   required    to    be    included   in    the    Proxy    Statement
 
                                       14
<PAGE>
and  any Other Filings;  and the Company, after  consultation with Varlen, shall
use its reasonable best efforts to respond promptly to any comments made by  the
Commission  or  any  other  governmental  official  with  respect  to  the Proxy
Statement, any Other Filings and any  preliminary version thereof and cause  the
Proxy  Statement and any related  materials to be mailed  to its shareholders at
the earliest practicable date.  The information provided and  to be provided  by
Varlen,  the  Purchaser and  the  Company, respectively,  for  use in  the Proxy
Statement and any Other Filings  shall not, on the  date the Proxy Statement  is
first mailed to the Company's shareholders or any Other Filing is filed with the
appropriate  governmental official and,  in the case of  the Proxy Statement, on
the date of the meeting of the Company's shareholders referred to in Section 5.3
hereof, contain  any  statement which,  at  the time  of  and in  light  of  the
circumstances under which it is made, is false or misleading with respect to any
material  fact,  or  omit  to state  any  material  fact in  order  to  make the
statements therein not false or misleading or necessary to correct any statement
in any earlier communication which has  become false or misleading. Varlen,  the
Company and the Purchaser each agree to correct any such information provided by
it  for use in the Proxy Statement or  any Other Filings which shall have become
false or misleading. The Proxy Statement shall comply as to form in all material
respects with all applicable requirements of the federal securities laws.
 
    Section 5.3   ACTION OF COMPANY  SHAREHOLDERS; VOTING OF  SHARES.   Promptly
after consummation of the Offer, the Company shall take all action necessary, in
accordance  with  the Virginia  Act and  its  Charter and  Bylaws, to  convene a
meeting of its shareholders (the  "Special Meeting") as promptly as  practicable
to  consider and  vote upon  the Merger (if  and to  the extent  required by the
Virginia Act). The affirmative vote of shareholders required for approval of the
Merger shall be no greater than the holders of two-thirds of the votes  entitled
to  be cast. Unless in the written opinion  of legal counsel to the Company (the
delivery of which shall be confirmed in  writing to Varlen by such counsel)  any
of  the  following actions  would  create a  substantial  risk of  violating the
fiduciary duties of the Board of  Directors to the shareholders of the  Company:
(1)  the  Proxy  Statement shall  contain  the  recommendation of  the  Board of
Directors that the  shareholders of the  Company vote to  adopt and approve  the
Merger and this Agreement, and (ii) the Company shall, if proxies are solicited,
use  its reasonable  best efforts  to solicit  from its  shareholders proxies in
favor of such adoption and approval and  to take all other action necessary  or,
in  the reasonable judgment of Varlen, helpful  to secure the vote or consent of
shareholders required by the Virginia Act  to effect the Merger. At the  Special
Meeting,  Varlen, the Purchaser and their direct and indirect subsidiaries shall
vote, or cause to be voted, all of the Shares then owned by any of them in favor
of the Merger.
 
    Section 5.4   ADDITIONAL AGREEMENTS.   Subject to the  terms and  conditions
herein  provided, each of the  parties hereto agrees to  use its reasonable best
efforts to take, or  cause to be taken,  all actions and to  do, or cause to  be
done, all things necessary, proper or advisable to consummate and make effective
as  promptly as practicable this  Agreement, the definitive agreements providing
for the Financing (the "Financing Agreements") and the transactions contemplated
hereby and thereby,  and to  cooperate with each  other in  connection with  the
foregoing,  including  using  its reasonable  best  efforts: (A)  to  obtain all
necessary exemptions, waivers, consents,  authorizations and approvals from  the
Department  of Justice, the  Federal Trade Commission  and other governmental or
regulatory agencies or authorities and  to make all necessary registrations  and
filings  (including (but not limited to) filings with governmental or regulatory
agencies or authorities, if any) and to take all reasonable steps, including the
use of such voting trusts  as may be necessary to  obtain an approval or  waiver
from,  or  to avoid  an  action or  proceeding  by, any  governmental  agency or
authority;  (B)  to   obtain  all  necessary   exemptions,  waivers,   consents,
authorizations  and approvals  from other  parties to  material loan agreements,
leases and other contracts  as are required  to be obtained  under the terms  of
such  instruments or under any federal, state or foreign law or regulations, (C)
to defend against and respond to  any suit, action, proceeding or  investigation
relating  to this Agreement or the transactions contemplated hereby commenced by
any third  party, (D)  to effect  all necessary  registrations and  filings  and
submissions  of information  requested by  governmental authorities,  and (E) to
fulfill all conditions to this Agreement.
 
                                       15
<PAGE>
    Section 5.5   NO NEGOTIATIONS,  ETC.   Neither the  Company nor  any of  its
Subsidiaries,  nor  any  of  their  respective  directors,  officers, employees,
investment bankers, representatives  or agents, shall,  directly or  indirectly,
make,  solicit,  initiate  or  encourage the  initiation  of,  any  inquiries or
proposals from, or provide  any confidential information  or participate in  any
discussions  or negotiations  with, or  otherwise cooperate  in any  way with or
assist, any person (other than Varlen and its subsidiaries, those third  parties
Previously  Disclosed  and  their  respective  directors,  officers,  employees,
investment bankers, commercial banks, representatives and agents) concerning any
merger, consolidation, other business combination, recapitalization, liquidation
or dissolution or any purchase or other acquisition or sale or other disposition
of assets (other than in the ordinary  course of business) or shares of  capital
stock  of the  Company or  any of  its Subsidiaries  or any  similar transaction
involving the  Company or  (except as  Previously Disclosed)  any Subsidiary  or
division  of the Company or any  Subsidiary; PROVIDED, HOWEVER, that (i) nothing
contained in  this  Section 5.5  shall  prohibit the  Company  or its  Board  of
Directors  from taking and  disclosing to the  Company's shareholders a position
contemplated by Rule 14d-9 or Rule 14e-2 promulgated under the Exchange Act, and
(ii) in the event that the Company shall receive an unsolicited proposal from  a
third  party which  the Company's  Board of  Directors determines,  based on the
advice of its  legal counsel and  independent financial advisor,  is capable  of
consummating  such  transaction,  for  the  acquisition  for  cash  of  all  the
outstanding Shares on terms  that the Company's  Board of Directors  determines,
based  on the advice of its financial advisor (the receipt of which advice shall
be confirmed in writing to Varlen by the Company), are economically superior  to
those  of the  Offer and the  Merger and which  in the written  opinion of legal
counsel to the Company (the delivery of  which shall be confirmed in writing  to
Varlen  by such counsel) a failure to consider  by the Board of Directors of the
Company would create a substantial risk  of violating their fiduciary duties  to
shareholders,  the Company  may provide information  to such third  party to the
same extent that such information has been provided to the Purchaser and Varlen.
The Company will promptly advise Varlen of, and communicate to Varlen the  terms
of, any such inquiry or proposal the Company may receive, and will advise Varlen
prior to providing any such information.
 
    Section 5.6  NOTIFICATION OF CERTAIN MATTERS.  The Company shall give prompt
notice  to Varlen, and Varlen and the  Purchaser shall give prompt notice to the
Company, of (i) the obtaining  by it of actual knowledge  as to the matters  set
forth in clauses (x) and (y) below, or (ii) the occurrence, or failure to occur,
of  any event which occurrence or failure to  occur would be likely to cause (x)
any representation  or warranty  contained in  this Agreement  to be  untrue  or
inaccurate  in any material respect, or (y) any material failure of the Company,
Varlen or  the Purchaser,  as the  case may  be, or  of any  officer,  director,
employee  or agent thereof, to comply with or satisfy any covenant, condition or
agreement to be complied  with or satisfied  by it under  this Agreement or  the
Financing  Agreements; PROVIDED, HOWEVER, that no such notification shall affect
the  representations  or  warranties  or  obligations  of  the  parties  or  the
conditions to the obligations of the parties hereunder.
 
    Section  5.7  ACCESS TO INFORMATION.  (a) The Company shall, and shall cause
its Subsidiaries,  officers,  directors,  employees and  agents  to,  afford  to
Varlen,  the Purchaser and the financial  institutions and others referred to in
Section 3.4 and to the officers,  employees and agents of Varlen, the  Purchaser
and  such financial  institutions and others  complete access  at all reasonable
times to, from the date hereof to the Effective Time, their respective officers,
employees, agents, properties, books, records  and contracts, and shall  furnish
Varlen,  the Purchaser and such financial institutions and others all financial,
operating  and  other  data  and  information  as  Varlen  and  such   financial
institutions and others, through their respective officers, employees or agents,
may reasonably request.
 
    (b)  Varlen  and  the  Purchaser  shall,  and  shall  cause  their officers,
employees,   agents    and   representatives,    (collectively,   the    "Varlen
Representatives")   to,  keep  confidential   all  non-public,  confidential  or
proprietary information provided by the Company (other than any such information
which (i) is or becomes generally available to the public other than as a result
of disclosure  by Varlen,  the  Purchaser or  the Varlen  Representatives,  (ii)
becomes  available to Varlen,  the Purchaser or the  Varlen Representatives on a
nonconfidential basis from  a source other  than the Company,  which source  has
represented  to Varlen,  the Purchaser or  the Varlen  Representatives that such
source is entitled to
 
                                       16
<PAGE>
disclose it  or  (iii)  was  known  to  Varlen,  the  Purchaser  or  the  Varlen
Representatives  on a nonconfidential  basis prior to  its disclosure to Varlen,
the Purchaser or  the Varlen  Representatives) and  all analyses,  compilations,
data, studies or other documents based in whole or in part on any such furnished
information  prepared  by Varlen,  the Purchaser  or the  Varlen Representatives
(collectively, the "Information"); and Varlen  and the Purchaser shall not,  and
shall cause the Varlen Representatives not to, without the prior written consent
of  the Company, disclose the Information, in any manner whatsoever, in whole or
in part, or use the Information for any purpose other than evaluating the Offer,
the Merger  and  the other  transactions  contemplated by  this  Agreement,  and
obtaining  the Financing; PROVIDED, HOWEVER, that  Varlen, the Purchaser and the
Varlen Representatives may provide such  Information in response to judicial  or
administrative  process  or  applicable governmental  laws,  rules, regulations,
orders or ordinances,  but only that  portion of the  Information which, on  the
advice  of counsel, is legally required to be furnished and provided that Varlen
notifies the Company of the obligation to provide such Information prior to such
disclosure and fully cooperates with the Company to protect the  confidentiality
of  such Information under applicable law;  AND PROVIDED, FURTHER, HOWEVER, that
Varlen, the Purchaser and the Varlen Representatives may include some or all  of
the  Information in the Schedule 14D-1, Offer Documents and the Proxy Statement,
if advised by the counsel  that it is legally necessary  or advisable to do  so.
The  Information,  and  all  copies  thereof,  will  be  destroyed  or  returned
immediately,  without  retaining  any  copies  thereof,  if  this  Agreement  is
terminated.
 
    (c)  No investigation after the date hereof  pursuant to this Section 5.7 or
otherwise shall affect any representations  or warranties of the parties  herein
or the conditions to the obligations of the parties hereto.
 
    (d) During the period from the date of this Agreement to the Effective Time,
Varlen  (at its discretion) may locate one or more of its representatives at the
Midlothian, Virginia offices of the Company. During such period the Company will
cause one or more of its  designated representatives to consult as requested  by
Varlen on a regular basis with such representatives of Varlen and to discuss the
general  status of ongoing operations of  the Company. The Company will promptly
notify Varlen of any significant change in  the normal course of business or  in
the  operation  of  the  properties  of  the  Company  and  of  any governmental
complaints, investigations or  hearings (or communications  indicating that  the
same  may  be  contemplated), or  the  institution  or threat  or  settlement of
significant litigation, in each case involving the Company, and will keep Varlen
fully informed of such events and permit Varlen's Representatives access to  all
materials prepared in connection therewith.
 
    Section 5.8  CONFIDENTIALITY AND STANDSTILL AGREEMENTS.  The Confidentiality
Agreement,  dated  March 27,  1996,  between the  Company  and Varlen  is hereby
terminated by the mutual consent of such parties, and shall no longer be of  any
force  or effect. The Company shall not  consent to the termination or amendment
of the  confidential information,  nondisclosure or  non-use provisions  of  any
similar agreement with a third party without the prior written consent of Varlen
or  the Purchaser and shall use its reasonable best efforts to take, or cause to
be taken, all actions and  to do, or cause to  be done, all things necessary  or
proper  to maintain in full  force and effect, and  to enforce strict compliance
with, such confidential information,  nondisclosure and non-use provisions.  The
Company  shall  also  use  its  reasonable  best  efforts  to  obtain  a similar
confidential information, nondisclosure, non-use  and standstill agreement  from
any  third party with  or for whom the  Company or any  Subsidiary has taken any
action or received any proposal not prohibited under Section 5.5.
 
    Section 5.9  INDEMNIFICATION  AND INSURANCE.  (a)  The Charter or Bylaws  of
the  Surviving  Corporation  shall  contain provisions  no  less  favorable with
respect to  indemnification than  those  that are  set  forth in  the  Company's
Charter  and Bylaws, as amended to the  date of this Agreement, which provisions
shall not be amended, repealed or otherwise modified for a period of five  years
after  the Effective Time in  any manner that would  adversely affect the rights
thereunder of individuals who on or prior to the Effective Time were  directors,
officers, employees or agents of the Company (the "Indemnified Parties"). Varlen
shall cause the Surviving Corporation to fulfill its indemnification obligations
as set forth in this Section 5.9.
 
                                       17
<PAGE>
    (b)  Varlen shall use its reasonable best  efforts to cause to be maintained
in effect  for  three years  from  the Effective  Time  the current  policy  (or
successor   policies)  of  the  directors'  and  officers'  liability  insurance
maintained by the Company (PROVIDED that Varlen may substitute therefor policies
of at least  the same  coverage containing terms  and conditions  which are  not
materially  less advantageous)  with respect to  matters occurring  prior to the
Effective Time, to  the extent available;  PROVIDED, HOWEVER, that  in no  event
shall  Varlen or the Company be required to  expend more than an amount per year
equal to 150% of current annual premiums paid by the Company (which the  Company
represents  and warrants  to be  not more than  $54,000) to  maintain or procure
insurance coverage pursuant hereto.
 
    (c) The provisions of this  Section 5.9 are intended  to be for the  benefit
of,  and shall  be enforceable  by, each  Indemnified Party,  his heirs  and his
personal representatives, shall  be binding upon  the Surviving Corporation  and
its  successors and  assigns and shall  continue and survive  the Effective Time
according to their terms.
 
                             ARTICLE 6: CONDITIONS
 
    Section  6.1    CONDITIONS  TO  OBLIGATION  OF  EACH  PARTY  TO  EFFECT  THE
MERGER.   The respective obligations of each  party to consummate and effect the
Merger shall be subject to the fulfillment,  at or prior to the Effective  Time,
of each of the following conditions:
 
        (A)  this Agreement and the Merger  shall have been approved and adopted
    by the requisite  vote or  consent of the  shareholders of  the Company  (if
    required  by the Virginia Act and  the Company's Charter and Bylaws, subject
    to Sections 1.2(a) and 4.14);
 
        (B) any waiting  period (and  any extension thereof)  applicable to  the
    consummation  of the  Merger under  the HSR Act  shall have  expired or been
    terminated; and
 
        (C) no injunction or other order, decree or ruling issued by a court  of
    competent  jurisdiction or  by a governmental,  regulatory or administrative
    agency or commission, nor any  statute, rule, regulation or executive  order
    promulgated  or enacted  by any governmental  authority, shall  be in effect
    which would make the acquisition or holding by Varlen or its subsidiaries of
    the Shares or shares of common stock of the Surviving Corporation illegal or
    otherwise prevent the consummation of the Merger.
 
    Section 6.2   ADDITIONAL  CONDITIONS TO  OBLIGATIONS OF  THE COMPANY.    The
obligation of the Company to consummate and effect the Merger is also subject to
the  fulfillment of the following  condition: the representations and warranties
of Varlen and the Purchaser set forth in Article 3 shall be true and correct  in
all  material respects  as of  the Effective  Time, and  each of  Varlen and the
Purchaser shall  have performed  in all  material respects  each obligation  and
agreement  and complied with each covenant to  be performed and complied with by
it hereunder on or prior to the Effective Time.
 
    Section 6.3    ADDITIONAL  CONDITIONS  TO  OBLIGATIONS  OF  VARLEN  AND  THE
PURCHASER.  The obligations of Varlen and the Purchaser to consummate and effect
the Merger are also subject to the fulfillment of following conditions:
 
        (A) the Purchaser shall have purchased Shares pursuant to the Offer;
 
        (B) none of the occurrences, events, facts or circumstances set forth in
    any  of paragraphs (a) through (h) of  ANNEX I hereto shall have occurred or
    be prevailing at or prior to the Effective Time;
 
        (C) the  opinion of  Virginia  counsel to  the  Company referred  to  in
    Section  4.14 hereof shall have been  confirmed or reissued by such counsel,
    as of the date  of the Effective Time  and without material modification  or
    qualification; and
 
                                       18
<PAGE>
        (D)  the Company shall not have received demands for payment of the fair
    value of Shares (pursuant to Article 15 (DISSENTER'S RIGHTS) of the Virginia
    Act) with respect to more than 5% of the outstanding Shares.
 
                  ARTICLE 7: TERMINATION, AMENDMENT AND WAIVER
 
    Section 7.1   TERMINATION.   This Agreement may  be terminated  at any  time
prior  to  the  Effective  Time,  whether prior  to  or  after  approval  by the
shareholders of the Company:
 
        (A) By mutual written consent of  the Boards of Directors of Varlen  and
    the Company;
 
        (B)  By  either  the  Company  or  Varlen  if  any  court  of  competent
    jurisdiction or other governmental body  shall have issued an order,  decree
    or  ruling or taken any  other action (which order,  decree, ruling or other
    action the parties hereto shall use their reasonable best efforts to  lift),
    in  each case,  permanently restraining, enjoining  or otherwise prohibiting
    the Offer or the Merger and such order, decree, ruling or other action shall
    have become final and non-appealable;
 
        (C) By the  Company, if  the Offer shall  have been  terminated, or  the
    Offer  shall have  expired, without  the purchase  of any  Shares thereunder
    within two business days thereof and  such non-purchase shall not have  been
    due  to a failure to satisfy any of the conditions of the Offer as set forth
    in ANNEX  I; PROVIDED  that the  Company may  not terminate  this  Agreement
    pursuant  to  this  Section 7.1(C)  if  the  Company is  in  breach  of this
    Agreement;
 
        (D) By the Company, if the Effective Time shall not have occurred on  or
    before  December 31, 1996 due  to a failure of any  of the conditions to the
    obligations of the Company to effect the Merger set forth in Section 6.1  or
    6.2;  PROVIDED that the Company may not terminate this Agreement pursuant to
    this Section 7.1(D) if the Company's failure to fulfill any obligation under
    this Agreement has been the cause of,  or resulted in, in whole or in  part,
    the failure of the Effective Time to occur on or before such date;
 
        (E)  By the Company if: (1)  any corporation, partnership, person, other
    entity or, group (as defined in Section 13(d)(3) of the Exchange Act)  other
    than  Varlen or  the Purchaser  or any  of their  respective subsidiaries or
    affiliates (a "Qualified Person") shall  have commenced (within the  meaning
    of  Rule 14d-2 under the  Exchange Act) a cash tender  offer for any and all
    Shares at a  price in  excess of  $16.125 per  Share, or  (2) any  Qualified
    Person  shall have made a  bona fide written proposal  involving a merger or
    consolidation of the Company or the acquisition of all the Shares or all  or
    a   substantial  portion  of  its  assets  which  would  result  in  a  cash
    distribution to shareholders of the Company  in excess of $16.125 per  Share
    (any  such proposal described in subclause (1) or (2) being referred to as a
    "Qualified Proposal"), and the Board of Directors of the Company shall  have
    been advised in a writing by its legal counsel (the delivery of which advice
    shall  have been confirmed in writing to  Varlen by such counsel) that there
    would be  a substantial  risk of  liability for  breach of  their  fiduciary
    obligations to shareholders if they failed to recommend such offer or accept
    such  Qualified  Proposal;  PROVIDED,  HOWEVER,  that  the  Company  may not
    terminate this  Agreement pursuant  to this  Section 7.1(E):  (i) until  the
    expiration of five business days after notice of such Qualified Proposal has
    been  delivered to Varlen, or (ii)  unless otherwise consented to in writing
    by Varlen, if any such offer or Qualified Proposal is made in breach of,  or
    as a result of a breach of, Section 5.5;
 
        (F) By either of Varlen or the Purchaser, if due to a failure to satisfy
    any  of the conditions of the  Offer as set forth in  ANNEX I: (i) Varlen or
    any of its subsidiaries or affiliates shall not have commenced the Offer, or
    shall have  terminated the  Offer,  or (ii)  the  Offer shall  have  expired
    without  the  purchase of  any Shares  thereunder  within two  business days
    thereof, or  (iii) Varlen  shall have  determined not  to proceed  with  the
    Merger;  PROVIDED that neither  Varlen nor the  Purchaser may terminate this
    Agreement pursuant to this Section 7.1(F) if either Varlen or the  Purchaser
    is in material breach of this Agreement;
 
                                       19
<PAGE>
        (G)  By either of Varlen  or the Purchaser, if  the Effective Time shall
    not have occurred on or before December 31, 1996 due to a failure of any  of
    the  conditions to the obligations of Varlen and the Purchaser to effect the
    Merger set forth in Section 6.1 or 6.3; PROVIDED that neither Varlen nor the
    Purchaser may terminate this  Agreement pursuant to  this Section 7.1(G)  if
    Varlen's or the Purchaser's failure to fulfill any material obligation under
    this  Agreement has been the cause of, or  resulted in, in whole or in part,
    the failure of the Effective Time to occur on or before such date; or
 
        (H) By either of Varlen  or the Purchaser, if  prior to the purchase  of
    Shares  in the Offer, the Board of  Directors of the Company shall have: (1)
    withdrawn, or modified in a manner  adverse to Varlen or the Purchaser,  its
    approval  or recommendation of the  Offer or the Merger  or any of its other
    actions taken  in accordance  with Section  1.2(a) and/or  4.14 hereof,  (2)
    taken  any of the actions  referred to in Section  1.2(a) and/or 4.14 hereof
    for the benefit of any  person (other than Varlen,  the Purchaser or any  of
    their  respective subsidiaries) or any transaction (other than the Offer and
    Merger), or (3) resolved to do any of the foregoing.
 
    Section 7.2  EFFECT OF TERMINATION.  In the event of the termination of this
Agreement as provided in Section 7.1: (i) this Agreement shall forthwith  become
null  and void,  and there  shall be  no liability  on the  part of  Varlen, the
Purchaser or  the Company,  except  as set  forth in  this  Section 7.2  and  in
Sections  5.7(b) and 7.5; and  (ii) the Purchaser shall  terminate the Offer, if
still pending, without  purchasing any additional  Shares thereunder;  PROVIDED,
HOWEVER,  that  the foregoing  shall  not relieve  any  party for  liability for
damages actually incurred as a result of any breach of this Agreement.
 
    Section 7.3  AMENDMENT.  This Agreement may be amended at any time prior  to
the filing of the Articles of Merger with the Virginia Commission; PROVIDED that
any  such amendment is set forth in an instrument in writing executed by each of
the parties  hereto  and  is previously  approved  by  action of  the  Board  of
Directors  of each  of the  parties hereto;  and PROVIDED  FURTHER that  if this
Agreement and  the  Merger  are  subject to  shareholder  approval  then,  after
approval  of the Merger by the shareholders  of the Company, no amendment may be
made without the further approval of the shareholders of the Company which would
do any of the following: (i) reduce or (to the extent prohibited by the Virginia
Act) increase the Merger Consideration or alter or change the form thereof; (ii)
alter or change any other of the  terms and conditions of this Agreement if  any
of the alterations or changes, alone or in the aggregate, would adversely affect
the  shareholders of the Company; or (iii) alter  or change any of the terms and
conditions of the Charter (except as may otherwise be provided herein).
 
    Section 7.4   WAIVER.   At any  time prior  to the  Effective Time,  whether
before  or after the Special  Meeting, any party hereto,  by action taken by its
Board of Directors, may: (i) extend the  time for the performance of any of  the
obligations  or other  acts of any  other party  hereto, or (ii)  subject to the
second proviso  contained in  Section  7.3, waive  compliance  with any  of  the
agreements of any other party or with any conditions of its own obligations. Any
agreement on the part of a party hereto to any such extension or waiver shall be
valid  only if set  forth in an instrument  in writing signed  on behalf of such
party by a duly authorized officer.
 
    Section 7.5   EXPENSES.  Each  party shall  pay its own  costs and  expenses
relating to this Agreement and the transactions contemplated hereby, and nothing
in this Agreement shall preclude any such payment, except that if this Agreement
is  terminated by the  Company pursuant to  Section 7.1(E) or  if this Agreement
and/or the Offer  is terminated  by Varlen  or the  Purchaser by  reason of  the
occurrence  of any Event (as defined in  ANNEX I hereto) described in either (I)
paragraph (a), (b)  or (g)  of ANNEX  I hereto, (ii)  paragraph (c)  of ANNEX  I
hereto  (but only if such Event  is due, in whole or in  part, to any (x) act of
the Company of  any affiliate thereof,  or (y) other  Occurrence (as defined  in
Section  4.1) not beyond the control of the Company or any affiliate thereof) or
(iii) clause (vi) of paragraph (c) of  ANNEX I hereto, the Company shall pay  to
Varlen,  a termination fee of $6,500,000  plus an amount sufficient to reimburse
Varlen and  its  subsidiaries  for  all  fees,  costs  and  expenses  (including
investment   banking,  professional  and  commitment   fees)  relating  to  this
Agreement, the Financing  and the transactions  contemplated hereby and  thereby
(PROVIDED that the Company shall not be obligated to
 
                                       20
<PAGE>
reimburse  Varlen and  its subsidiaries for  more than $2,000,000  of such fees,
costs and expenses). Such termination  fee shall be due  and payable (1) on  the
date  of (and as a condition precedent  to) any termination of this Agreement by
the  Company  as  aforesaid,  and  (ii)  within  two  business  days  after  any
termination  of this Agreement by Varlen or the Purchaser as aforesaid. Any such
reimbursement shall  be due  and  payable within  two  business days  after  the
submission by Varlen to the Company of any invoice or statement therefor.
 
                         ARTICLE 8: GENERAL PROVISIONS
 
    Section  8.1  CLOSING.  Unless this Agreement shall have been terminated and
the transactions herein contemplated shall  have been abandoned pursuant to  the
provisions  of Article 7, and subject to the provisions of Article 6 hereof, the
closing of this Agreement shall take place  at the offices of Mays &  Valentine,
NationsBank  Center, 1111  East Main  Street, Richmond,  Virginia 23218-1122, as
soon as practicable following the meeting of the shareholders of the Company  or
other  shareholder action referred  to in Section  5.3 hereof, or  at such other
place, time and date as the parties may mutually agree.
 
    Section 8.2   PUBLIC STATEMENTS.   The parties  agree to  consult with  each
other  prior to issuing any public announcement or statement with respect to the
Offer or  the Merger,  and shall  not issue  or make  any such  announcement  or
statement  to which  the other parties  shall reasonably object  (subject to the
requirements of federal and state securities laws and to Section 5.2).
 
    Section 8.3  NOTICES.  All notices and other communications hereunder  shall
be  in  writing  and  shall be  deemed  to  have been  duly  given  if delivered
personally or sent by guaranteed overnight service or telecopier to the  parties
at  the following addresses (or at such other addresses as shall be specified by
the parties by like notice):
 
    If to Varlen, the Purchaser or (after the Effective Time) the Company:
 
        Varlen Corporation
       55 Shuman Boulevard, Suite 500
       Naperville, Illinois 60566
       ATTENTION: Richard L. Wellek
       President & Chief Executive Officer
       Telecopier No. (708) 420-7123
       Telephone No. (708) 420-0400
 
    with a copy to:
 
        Dechert Price & Rhoads
       477 Madison Avenue
       New York, New York 10022
       ATTENTION: Claude A. Baum, Esq.
       Telecopier No. (212) 308-2041
       Telephone No. (212) 326-3500
 
    If to the Company (before the Effective Time):
 
        Brenco, Incorporated
       One Park West Circle, Suite 201
       Midlothian, Virginia 23113
       ATTENTION: Needham B. Whitfield
       Chairman & Chief Executive Officer
       Telecopier No. (804) 379-4668
       Telephone No. (804) 379-2900
 
                                       21
<PAGE>
    with a copy to:
 
        Mays & Valentine
       NationsBank Center
       1111 East Main Street
       Richmond, Virginia 23218
       ATTENTION: F. Claiborne Johnston, Jr., Esq.
       Telecopier No. (804) 697-1214
       Telephone No. (804) 697-1339
 
    Section 8.4   INTERPRETATION.  For  purposes of this  Agreement the  Company
shall  not be deemed to be an affiliate or subsidiary of the Purchaser or Varlen
and neither the Purchaser nor Varlen shall  be deemed to be an affiliate of  the
Company.  The  headings  contained  in this  Agreement  are  for  convenience of
reference purposes  only  and  shall  not  affect in  any  way  the  meaning  or
interpretation  of this Agreement. Article, Section and Annex references in this
Agreement are to the referenced Articles  and Sections of, and Annexes to,  this
Agreement, unless the context otherwise requires.
 
    Section   8.5    REPRESENTATIONS  AND   WARRANTIES;  ETC.    The  respective
representations  and  warranties  of  the  Company,  Varlen  and  the  Purchaser
contained  herein shall  expire with, and  be terminated  and extinguished upon,
consummation of the Merger.
 
    Section 8.6   MISCELLANEOUS.   This  Agreement: (i)  constitutes the  entire
agreement,  and  supersedes all  other prior  agreements and  undertakings (both
written and oral), among the parties hereto, or any of them, with respect to the
subject matter  hereof; (ii)  except for  Sections 2.6  and 5.9  hereof, is  not
intended to confer upon any other person any rights or remedies hereunder; (iii)
shall  not  be  assigned or  delegated  by  any party  hereto,  except  that the
Purchaser may assign all or any portion of its rights and obligations  hereunder
to  Varlen or  to one  or more direct  or indirect  wholly-owned subsidiaries of
Varlen which in  a written  instrument shall  make all  the representations  and
warranties  of the Purchaser set  forth herein and shall  agree to assume all of
the Purchaser's  obligations hereunder  and be  bound by  all of  the terms  and
conditions  of this  Agreement (PROVIDED,  HOWEVER, that  no such  assignment or
delegation shall relieve the Purchaser  of its obligations hereunder); and  (iv)
shall  be  governed  in  all respects,  including  validity,  interpretation and
effect, by the  internal laws of  the Commonwealth of  Virginia, without  giving
effect  to the  principles of  conflict of laws  thereof. This  Agreement may be
executed in two or more counterparts,  which together shall constitute a  single
agreement.
 
    Section  8.7  SPECIFIC PERFORMANCE.  Each of the parties hereto acknowledges
and agrees that  the other parties  hereto would be  irreparably damaged in  the
event  any of the provisions of this  Agreement were not performed in accordance
with their specific terms or were  otherwise breached. Accordingly, each of  the
parties  hereto agrees  that they  each shall  be entitled  to an  injunction or
injunctions to  prevent breaches  of the  provisions of  this Agreement  and  to
enforce  specifically this Agreement and the  terms and provisions hereof in any
action instituted in any court of the United States or any state thereof  having
subject matter jurisdiction, in addition to any other remedy to which such party
may be entitled, at law or in equity.
 
                                       22
<PAGE>
    IN  WITNESS WHEREOF, Varlen, the Purchaser  and the Company have caused this
Agreement to be executed as of the date first written above by their  respective
officers, thereunto duly authorized.
 
<TABLE>
<S>                                           <C>
VARLEN CORPORATION                            BRENCO, INCORPORATED
 
By: ----------------------------              By: ----------------------------
   Richard L. Wellek                          Needham B. Whitfield
   President and                              Chairman of the Board and
   Chief Executive Officer                    Chief Executive Officer
</TABLE>
 
BAS, INC.
 
By:
- ----------------------------
   Richard L. Wellek
   President
 
                                       23
<PAGE>
                                                                         ANNEX I
                                                      (TO ACQUISITION AGREEMENT)
 
                            CONDITIONS TO THE OFFER
 
    Notwithstanding  any  other provision  of the  Acquisition Agreement  or the
Offer, and  except as  expressly  limited below,  the  Purchaser: shall  not  be
required  to commence or continue the Offer;  or accept for payment, purchase or
pay for  any Shares  tendered;  may postpone  the  acceptance for  payment,  the
purchase  of,  and/or payment  for,  Shares; and/or  may  amend (subject  to the
restrictions contained in Section 1.1 of the Acquisition Agreement, dated as  of
June  15, 1996 among Varlen,  the Purchaser and the Company  (as the same may be
modified,  amended,  supplemented  and/or  restated  from  time  to  time,   the
"Acquisition  Agreement")) or terminate the Offer;  if: (1) there shall not have
been validly tendered and not withdrawn prior  to the expiration of the Offer  a
number  of  Shares which,  together with  the Shares  beneficially owned  by the
Purchaser and Varlen,  represents two-thirds of  the total voting  power of  all
shares  of capital stock of the Company outstanding on a fully diluted basis, or
(2) any waiting  period under  the HSR  Act applicable  to the  purchase of  the
Shares  pursuant to the Offer shall not  have expired or been terminated, or (3)
at any time on or after  June 1, 1996 and prior to  the time of payment for  any
such  Shares  (whether or  not  any Shares  have  theretofore been  accepted for
payment or paid for pursuant to the  Offer), any of the following events  (each,
an  "Event") shall have occurred (each of paragraphs (a) through (h) providing a
separate and independent  condition to the  Purchaser's obligations pursuant  to
the Offer):
 
        (a) the Company shall have authorized, recommended or proposed, or shall
    have  announced an  intention to authorize,  recommend or  propose, or shall
    have entered into an  agreement or agreement in  principle with respect  to,
    any  merger,  consolidation, other  business  combination, recapitalization,
    liquidation or dissolution, or any purchase or other acquisition or sale  or
    other  disposition of assets (other than in the ordinary course of business)
    or shares of capital stock of the Company or any of its Subsidiaries, or any
    similar transaction involving the Company  or any Subsidiary or division  of
    the  Company  or any  Subsidiary (other  than the  Merger and  as Previously
    Disclosed  with  respect  to  certain  subsidiaries)  (the  foregoing  being
    collectively  referred to as a  "Business Combination"), any material change
    in its  capitalization, or  any release  or relinquishment  of any  material
    contract or other rights not in the ordinary course of business; or
 
        (b) (i) the Board of Directors of the Company shall have (x) modified or
    amended in any respect its recommendation of the Offer, the Merger or any of
    its other actions taken in accordance with Section 1.2(a) and/or 4.14 of the
    Acquisition  Agreement, or (y) adopted any resolution  to do so, or (ii) the
    opinion of Virginia counsel  to the Company referred  to in Section 4.14  of
    the  Acquisition Agreement shall have  been disclaimed, disavowed, retracted
    or revoked in any respect, or shall otherwise have been rendered  inaccurate
    or  erroneous, or (iii) the Board of Directors of the Company shall have (x)
    taken any of the actions referred to  in Section 1.2(a) and/ or 4.14 of  the
    Acquisition  Agreement for  the benefit of  any person, entity  or group (as
    defined in Section  13(d)(3) of the  Exchange Act) (other  than Varlen,  the
    Purchaser   or  any  of  their  respective  subsidiaries)  or  any  Business
    Combination (other  than the  Offer  and the  Merger),  or (y)  adopted  any
    resolution to do so; or
 
        (c)  it shall have been publicly  disclosed, or Varlen, the Purchaser or
    the Company shall have learned that:  (i) any person, entity (including  the
    Company  or any of its  subsidiaries or affiliates) or  group (as defined in
    Section 13(d)(3) of the Exchange Act)  (a "Person") shall have (x)  acquired
    or  become the beneficial owner  of more than 10%  of the outstanding Shares
    (other than  those  shareholders  of  the  Company  party  to  that  certain
    Shareholder  Tender Agreement, dated as of June 15, 1996, between Varlen and
    such shareholders (the  "Permitted Shareholders")), or  (y) been granted  by
    the  Company  any warrant,  option or  right,  conditional or  otherwise, to
    acquire beneficial ownership  of more  than 10% of  the outstanding  Shares,
    other  than  acquisitions  by  a  Person  who  has  publicly  disclosed such
    ownership in a Schedule 13D or 13G  (or amendment thereto) on file with  the
    Commission  prior to June  1, 1996, and  other than for  bona fide arbitrage
 
                                       24
<PAGE>
    purposes, or (ii) any such Person (other than, in the case of the  following
    clause  (x), a Permitted  Shareholder) who has publicly  disclosed in such a
    Schedule 13D or 13G any such ownership  of more than 10% of the  outstanding
    Shares  prior to such date shall have  (x) acquired or become the beneficial
    owner of,  or  proposed  to  acquire or  become  the  beneficial  owner  of,
    additional Shares, or (y) been granted by the Company any warrant, option or
    right,  conditional or  otherwise, to acquire  any Shares, or  (iii) any new
    group shall have been  formed which beneficially owns  more than 10% of  the
    Shares,  or (iv)  any Person shall  have commenced, or  publicly proposed to
    commence, a tender offer  for outstanding Shares,  or publicly proposed  any
    Business   Combination,  or  (v)   any  Person  shall   have  commenced  any
    solicitation of proxies  with respect  to the  Shares in  opposition to  the
    Merger,  or (vi)  any Person  shall have  acquired or  become the beneficial
    owner of more than 50% of the outstanding Shares; or
 
        (d) there shall be  pending any action or  proceeding before any  court,
    government  or governmental authority or  agency: (i) challenging or seeking
    to make illegal, or to delay or otherwise directly or indirectly to restrain
    or prohibit the making of the Offer, the acceptance for payment of,  payment
    for,  or the purchase of, some or all of the Shares by Varlen, the Purchaser
    or any other subsidiary  or affiliate of Varlen  or the consummation of  the
    Merger,  or seeking to obtain material  damages in connection with the Offer
    or the Merger, or (ii) seeking to prohibit ownership or operation by Varlen,
    the Purchaser or any  other subsidiary or  affiliate of Varlen  of all or  a
    material  portion of the business or assets of Varlen, the Company or any of
    their respective  subsidiaries  or  affiliates  or  to  compel  Varlen,  the
    Purchaser or any other subsidiary or affiliate of Varlen to dispose of or to
    hold  separately all  or a  material portion  of the  business or  assets of
    Varlen, the Company or any  of their respective subsidiaries or  affiliates,
    as  a result  of the  Offer or  the Merger,  or (iii)  seeking to  impose or
    confirm limitations on  the ability of  Varlen, the Purchaser  or any  other
    subsidiary  or affiliate  of Varlen effectively  to exercise  full rights of
    ownership and control of any Shares (or  any shares of capital stock of  any
    subsidiary of the Company) (including, without limitation, the right to vote
    any  such Shares (or shares of a subsidiary)) acquired pursuant to the Offer
    or otherwise (directly or indirectly), on all matters properly presented  to
    the  Company's shareholders (or any such subsidiary's shareholders), or (iv)
    seeking to  require  divestiture  by  Varlen, the  Purchaser  or  any  other
    subsidiary  or affiliate  of Varlen  of any  Shares, or  (v) invalidating or
    rendering unenforceable any material provision of the Acquisition Agreement,
    or (vi)  which  otherwise  might materially  adversely  affect  Varlen,  the
    Company or any of their respective subsidiaries or affiliates; or
 
        (e)  there shall be any action  taken, or any statute, rule, regulation,
    judgment,  order  or  injunction   proposed,  enacted,  entered,   enforced,
    promulgated,  issued or deemed applicable to the Offer or the Merger, by any
    court, government  or  governmental  authority or  agency  (other  than  the
    application  of the waiting period provisions of the HSR Act to the Offer or
    to the  Merger) which  may, directly  or indirectly,  result in  any of  the
    consequences referred to in paragraph (d) above; or
 
        (f)  there  shall  have  occurred: (i)  any  general  suspension  of, or
    limitation on prices for, trading  in securities on any national  securities
    exchange  or  in the  over-the-counter market,  or (ii)  a declaration  of a
    banking moratorium or any suspension of payments in respect of banks in  the
    United  States, or  (iii) any limitation  (whether or not  mandatory) by any
    governmental authority on, or any other event which, in the sole judgment of
    Varlen, might  affect the  extension of  credit by  banks or  other  lending
    institutions in the United States, or (iv) any material change in the United
    States  or  any  other currency  exchange  rates  or any  suspension  of, or
    limitation on, the markets therefor, or (v) any extraordinary adverse change
    in the financial  markets or the  market price  of the Shares,  or (vi)  any
    change in the general political, market, economic or financial conditions in
    the United States or abroad that could, in the sole judgment of Varlen, have
    a  material adverse effect upon the business or operations of the Company or
    any of its subsidiaries or affiliates or the trading of the Shares, or (vii)
    a commencement of war, armed hostilities or
 
                                       25
<PAGE>
    other international or  national calamity directly  or indirectly  involving
    the United States, or (viii) in the case of any of the foregoing existing at
    the  time  of the  commencement  of the  Offer,  a material  acceleration or
    worsening thereof; or
 
        (g) the representations and warranties of the Company in the Acquisition
    Agreement shall not  be true and  correct in all  material respects, or  the
    Company  shall not have performed in all material respects each covenant and
    complied with  each agreement  to  be performed  and  complied with  by  the
    Company under the Acquisition Agreement; or
 
        (h)  the Company and Varlen shall have  agreed to terminate the Offer or
    the Acquisition Agreement, or the Acquisition Agreement shall otherwise have
    been terminated in accordance with it terms;
 
    which, in  the  sole  judgment of  the  Purchaser,  in any  such  case,  and
regardless  of  the  circumstances  (including any  action  or  inaction  by the
Purchaser and Varlen) giving rise to any such condition, make it inadvisable  to
proceed  with acceptance for  payment or purchase  of or payment  for any Shares
tendered or to proceed with the Merger.
 
    The foregoing  conditions  are  for  the sole  benefit  of  Varlen  and  the
Purchaser  and may  be asserted  by Varlen and  the Purchaser  regardless of the
circumstances giving rise to such condition, including (without limitation)  any
action or inaction by Varlen or the Purchaser, or may be waived by Varlen or the
Purchaser  in whole  at any  time or  in part  from time  to time  in their sole
discretion. The failure by Varlen or the  Purchaser at any time to exercise  any
of  the foregoing rights shall not be deemed a waiver of any such right and each
such right shall be deemed an ongoing right and may be asserted at any time  and
from  time to time. Any determination by  Varlen or the Purchaser concerning any
Event shall be final and binding upon all parties.
 
                                       26
<PAGE>
                                                                        ANNEX II
                                                      (TO ACQUISITION AGREEMENT)
 
                           COMPANY BOARD RESOLUTIONS
 
    RESOLVED, that the execution and delivery by any one or more of the officers
of the Company, in  the name and  on behalf of the  Company, of the  Acquisition
Agreement  dated as of June 15, 1996  between (1) Varlen Corporation, a Delaware
corporation ("Parent"), (2) BAS, Inc., a Virginia corporation ("Purchaser"), and
(3) the Company,  in the form  of the draft  presented to the  Board, with  such
changes,  modifications, amendments, supplements  and/or restatements thereto or
thereof as  the signing  officer of  Corporation (upon  the advice  of  counsel)
approves  (collectively,  "the  Acquisition  Agreement"),  such  approval  to be
conclusively evidenced by his signature to such agreement, and the  consummation
of  the  tender  offer,  merger  and  other  transactions  contemplated  by  the
Acquisition Agreement, are hereby authorized  and approved in all respects;  and
further
 
    RESOLVED,  that the  Board hereby  determines that  the terms  of the tender
offer, the merger  and the Acquisition  Agreement are  fair to and  in the  best
interests   of  the  shareholders  of  the   Company  and  recommends  that  the
shareholders of the Company (1) accept the tender offer and tender their  shares
pursuant  to the tender  offer and (2)  approve the merger  (if such approval is
required by Virginia law); and further
 
    RESOLVED, that the execution and delivery by any one or more of the officers
of the Company,  in the name  and on behalf  of the Company,  of all  documents,
agreements  and instruments  which are  referenced in,  or contemplated  by, the
Acquisition Agreement, each in such form as the signing officers of the  Company
shall (upon the advice of counsel) deem to be necessary or advisable in order to
carry  into effect the tender offer,  merger and other transactions contemplated
by the Acquisition Agreement,  the approval of each  such signing officer to  be
conclusively  evidenced  by  his  signature to  such  documents,  agreements and
instruments, are hereby authorized and approved in all respects; and further
 
    RESOLVED, that, for the declared purpose of exempting Parent, Purchaser  and
their  respective direct and indirect subsidiaries (each, a "Parent Person") and
the tender offer,  the merger  and the  other transactions  contemplated by  the
Acquisition  Agreement from (1) the restrictions and other provisions of Article
14, 13.1-725- 728 (Affiliated  Transactions) of the  Code of Virginia  ("Article
14")  and (2) the provisions  of 13.1-730 of Article  15 (Dissenter's Rights) of
the Code of Virginia,  the following are hereby  authorized and approved in  all
respects:  (1) the  Company engaging with  any Parent Person  in any transaction
pursuant to  the Acquisition  Agreement which  would constitute  an  "affiliated
transaction"  (within the meaning of Article 14),  (2) the tender offer and plan
of merger set  forth in the  Acquisition Agreement and  (3) consummation of  the
tender  offer,  merger and  other transactions  contemplated by  the Acquisition
Agreement; and further
 
    RESOLVED, that,  for the  declared purpose  of qualifying  the  transactions
contemplated  by the Acquisition Agreement as an "excepted acquisition", as that
term is defined and used in Va. Code 13.1-728.1, the plan of merger set forth in
the Acquisition Agreement and  the tender offer,  merger and other  transactions
contemplated  by the Acquisition Agreement are hereby authorized and approved in
all respects; and further
 
    RESOLVED, that, for the declared purpose of exempting each Parent Person and
the tender offer,  the merger  and the  other transactions  contemplated by  the
Acquisition  Agreement from  the supermajority shareholder  vote requirement set
forth in Article I of the Articles of Incorporation, as amended, of the  Company
("Article  I"),  any  "business combination"  within  the meaning  of  Article I
provided for  in the  Acquisition Agreement  with any  Parent Person  is  hereby
authorized and approved in all respects; and further
 
    RESOLVED,  that the officers of the  Company are hereby severally authorized
to do and to perform, or to cause to be done and performed, such other acts, and
to execute and deliver, or to cause
 
                                       27
<PAGE>
to be executed and delivered,  such other documents, agreements and  instruments
(in  each case in  the name of  the Company, on  its behalf) as  they, or any of
them, shall (upon the advice  of counsel) deem to  be necessary or advisable  in
order  to  carry  into effect  the  transactions contemplated  by  the foregoing
resolutions, including but not limited  to such acts, executions and  deliveries
to  discharge obligations under, and to carry out and comply with, the terms and
conditions set forth in,  or contemplated by, all  of the documents,  agreements
and instruments named in the foregoing resolutions.
 
                                       28

<PAGE>

                                                                      EXHIBIT D



                          SHAREHOLDER TENDER AGREEMENT

     SHAREHOLDER TENDER AGREEMENT (as the same may be modified, amended,
supplemented and/or restated from time to time, this "Agreement"), dated as of
June 15, 1996, by and among (1) Varlen Corporation, a Delaware corporation
("Varlen"), and (2) each of the parties listed on the signature pages hereof
(each, a "Shareholder").

                                    RECITALS

     Varlen, BAS, Inc., a Virginia corporation wholly-owned by Varlen (the
"Purchaser"), and Brenco, Incorporated, a Virginia corporation (the "Company"),
have entered into an Acquisition Agreement, of even date herewith (as the same
may be modified, amended, supplemented and/or restated from time to time, the
"Acquisition Agreement"), which provides, upon the terms and subject to the
conditions thereof, for the acquisition by Purchaser of all of the Company's
outstanding Common Stock, par value $1.00 per share ("Common Stock"), through:
(A) a tender offer (as the same may be amended from time to time in accordance
with the Acquisition Agreement, the "Offer") for any and all outstanding shares
of Common Stock for $16.125 per share, net to the seller in cash and without
interest thereon (as such price may be increased from time to time pursuant to
the terms of any amended Offer, the "Offer Price"), and (B) a second step merger
pursuant to which the Purchaser will merge with and into the Company (the
"Merger") and all shares of Common Stock (other than shares held by Varlen, the
Purchaser or the Company or any direct or indirect subsidiary of Varlen, the
Purchaser or the Company, and shares held by any holder who properly exercises
and does not waive or withdraw dissenter's rights with respect to its shares
under the Virginia Stock Corporation Act (the "Virginia Act")) will be converted
into the right to receive the Offer Price in cash.

     As of the date hereof, each Shareholder is the record and beneficial owner
of the number of shares of Common Stock set forth under such Shareholder's name
on the signature page hereto (the "Existing Shares"; and any shares of Common
Stock hereafter acquired by a Shareholder prior to the termination of this
Agreement being referred to herein as the "After-Acquired Shares";  and the
Existing Shares and After-Acquired Shares being collectively referred to herein
as the "Shares").

     As a condition to the willingness of Varlen and the Purchaser to enter into
the Acquisition Agreement, Varlen has required that each Shareholder agree, and,
in order to induce Varlen and the Purchaser to enter into the Acquisition
Agreement, each Shareholder has agreed, severally and not jointly, to tender all
of such Shareholder's Shares pursuant to the Offer.

     NOW, THEREFORE, in consideration of the premises and the mutual covenants
herein and in the Acquisition Agreement contained, and for other good and
valuable consideration, the receipt and adequacy of which are hereby
acknowledged, Varlen and each Shareholder hereby agree as follows:
<PAGE>

                           ARTICLE 1: TENDER OF SHARES

     SECTION 1.1    TENDER OF SHARES.  Each Shareholder shall validly tender all
such Shareholder's Shares pursuant to the Offer before the expiration date
thereof and agrees not to withdraw any Shares so tendered without Varlen's prior
written consent; PROVIDED, HOWEVER, that each Shareholder may: (i) refrain from
so tendering its Shares, and may withdraw any Shares previously so tendered, if
and for so long as there shall have been commenced and not terminated a Superior
Offer (as defined in Section 1.3); and (ii) may tender its Shares pursuant to
such Superior Offer; AND PROVIDED FURTHER, HOWEVER, that in the event that (x)
any such Superior Offer shall have expired or been terminated without purchase
of such Shareholder's Shares, and (y) the Offer shall then be in effect, then
Shareholder shall again be subject to the provisions of this sentence.

     SECTION 1.2    CHARITABLE CONTRIBUTIONS.  Notwithstanding anything to the
contrary set forth in this Agreement, up to 50,000 Shares in the aggregate
(among all Shareholders) may be contributed by one or more Shareholders to one
or more charitable organizations and, if and to the extent so contributed, shall
not be required to be tendered pursuant to the Offer hereunder.

     SECTION 1.3    SUPERIOR OFFER.  For purposes of this Agreement, the term
"Superior Offer" shall mean a cash tender offer commenced (within the meaning of
Rule 14d-2 under the Exchange Act) by any corporation, partnership, person,
other entity or group (as defined in Section 13(d)(3) of the Securities Exchange
Act of 1934, as amended (the "Exchange Act")) (other than Varlen or the
Purchaser or any of their respective subsidiaries or affiliates) for any and all
shares of Common Stock at a price in excess of the then Offer Price.

                           ARTICLE 2: REPRESENTATIONS
                       AND WARRANTIES OF THE SHAREHOLDERS

     Each Shareholder (as to itself only) hereby represents and warrants to, and
agrees with, Varlen as follows:

     TITLE TO SHARES; NO OTHER SHARES.  Such Shareholder is the record or
beneficial owner of the number of Existing Shares set forth below such
Shareholder's name on the signature page hereof (which are evidenced by the
Common Stock certificate(s) identified below such Shareholder's name on the
signature page hereof (the "Certificate")), free and clear of any pledge, lien,
security interest, charge, claim, equity, option, proxy, voting restriction,
right of first refusal or other limitation on disposition or encumbrance of any
kind, other than pursuant to this Agreement.  The number of Existing Shares and
the Certificate set forth below such Shareholder's name on the signature page
hereof represent the only Shares and Certificate owned of record or beneficially
by such Shareholder as of the date hereof.  Such Shareholder has full right,
power and authority to sell, pledge, transfer and deliver its Existing Shares
and Certificate pursuant to this Agreement, and upon any acquisition of any
After-Acquired Shares will have full right, power and authority to sell, pledge,
transfer and deliver such After-Acquired Shares (and the Common Stock
certificate(s) evidencing the same) pursuant to this Agreement.  There are no
outstanding proxies with respect to Shares owned of record or beneficially by
such Shareholder.


                                       -2-
<PAGE>

               ARTICLE 3: REPRESENTATIONS AND WARRANTIES OF VARLEN

     Varlen hereby makes the same representations and warranties to each
Shareholder as Varlen has made to the Company in Article 3 of the Acquisition
Agreement with the same effect as though such representations and warranties
were herein set forth in full.

                 ARTICLE 4: TRANSFER OF SHARES; NO SOLICITATION

     SECTION 4.1    TRANSFER OF SHARES.  During the term of this Agreement, and
except as otherwise provided herein or with the prior written consent of Varlen,
each Shareholder shall not: (i) sell, pledge or otherwise dispose of any of its
Shares, (ii) deposit its Shares into a voting trust or enter into a voting
agreement or arrangement with respect to such Shares, (iii) grant any proxy,
power-of-attorney or other authorization in or with respect to such Shares, or
(iv) enter into any contract, option or other arrangement or undertaking with
respect to the direct or indirect sale, assignment, transfer or other
disposition of any Shares.

     SECTION 4.2    APPOINTMENT OF ATTORNEY-IN-FACT.  In the event that any
Shareholder shall be in default of its obligations hereunder, such Shareholder
irrevocably appoints Varlen as such Shareholder's attorney-in-fact, with an
irrevocable instruction to Varlen (if and to the extent that such Shareholder is
required by the terms of this Agreement to do so): (i) validly to tender such
Shareholder's Shares pursuant to the Offer, and (ii) to execute any instrument
of transfer and/or other documents and do all such other acts and things as may
in the opinion of Varlen be necessary or expedient for the purpose of, or in
connection with, tendering such Shares pursuant to the Offer.

     SECTION 4.3    NO SOLICITATION.  Each Shareholder agrees to abide by the
terms of Section 5.5 of the Acquisition Agreement.

                             ARTICLE 5: TERMINATION

     This Agreement shall terminate upon the earlier to occur of: (i) the
termination of the Acquisition Agreement, and (ii) the Effective Time (as
defined in the Acquisition Agreement) of the Merger.  Upon such termination,
this Agreement shall have no further force or effect (other than Section 6.4,
which shall continue to apply to any case, action or proceeding relating to the
enforcement of this Agreement).

                          ARTICLE 6: GENERAL PROVISIONS

     SECTION 6.1    NOTICES.  All notices and other communications hereunder
shall be in writing and shall be deemed to have been duly given if delivered
personally or sent by guaranteed overnight service or telecopier to the parties
at the following addresses) or at such other addresses as shall be specified by
the parties by like notice):


                                       -3-
<PAGE>

     If to Varlen:
                         Varlen Corporation
                         55 Shuman Boulevard, Suite 500
                         Naperville, Illinois  60566-7089
                         ATTENTION: Richard L. Wellek
                                    President & Chief Executive Officer
                         Telecopier No. (708) 420-7123
                         Telephone No.   (708) 420-0400

     with a copy to:
                         Dechert Price & Rhoads
                         477 Madison Avenue
                         New York, New York  10022
                         ATTENTION: Claude A. Baum, Esq.
                         Telecopier No. (212) 308-2041
                         Telephone No.   (212) 326-3500

     If to a Shareholder, to the address set forth below such Shareholder's name
     on the signature pages hereof.

     Section 6.2    INTERPRETATION.  The headings contained in this Agreement
are for convenience of reference purposes only and shall not affect in any way
the meaning or interpretation of this Agreement.  Article and Section references
in this Agreement are to the referenced Articles and Sections of this Agreement,
unless the context otherwise requires.

     Section 6.3    MISCELLANEOUS.  This Agreement: (i) constitutes the entire
agreement, and supersedes all other prior agreements and undertakings (both
written and oral), among the parties hereto, or any of them, with respect to the
subject matter hereof; (ii) is not intended to confer upon any other person any
rights or remedies hereunder; (iii) shall not be assigned or delegated by any
party hereto, except that Varlen may assign all or any portion of its rights and
obligations hereunder to one or more direct or indirect wholly-owned
subsidiaries of Varlen which in a written instrument shall make all the
representations and warranties of Varlen set forth herein and shall agree to
assume all of Varlen's obligations hereunder and be bound by all of the terms
and conditions of this Agreement (PROVIDED, HOWEVER, that no such assignment or
delegation shall relieve Varlen of its obligations hereunder); and (iv) shall be
governed in all respects, including validity, interpretation and effect, by the
internal laws of the Commonwealth of Virginia, without giving effect to the
principles of conflict of laws thereof.  This Agreement may be executed in two
or more counterparts, which together shall constitute a single agreement.

     Section 6.4    SPECIFIC PERFORMANCE.  Each of the parties hereto
acknowledges and agrees that the other parties hereto would be irreparably
damaged in the event any of the provisions of this Agreement were not performed
in accordance with their specific terms or were otherwise breached.
Accordingly, each of the parties hereto agrees that they each shall be entitled
to an injunction or injunctions to prevent breaches of the provisions of this
Agreement and to enforce specifically this Agreement and the terms and
provisions hereof in any action instituted in any court of the United States or
any state


                                       -4-
<PAGE>

thereof having subject matter jurisdiction, in addition to any other remedy to
which such party may be entitled, at law or in equity.

     IN WITNESS WHEREOF, Varlen and the Shareholders have caused this Agreement
to be executed as of the date first written above.


VARLEN CORPORATION


By:
   ---------------------------
     Richard L. Wellek
     President and
       Chief Executive Officer


SHAREHOLDERS:



Name:      Needham Bryan Whitfield
Number of Existing Shares:      91,917
Certificate No(s).  See Annex III
Record Owner:  Needham Bryan Whitfield
Address:  One Park West Circle
          Suite 201
          Midlothian, Virginia 23113
ATTENTION:   Needham Bryan Whitfield
Telecopier No.  (804) 379-4668
Telephone No.  (804) 379-2900




Name:       Anne Whitfield Kenny
Number of Existing Shares:  443,800
Certificate No(s).  See Annex IV
Record Owner:  Anne Whitfield Kenny
Address:   206 Gun Club Road
           Richmond, Virginia 23221

ATTENTION:   Anne Whitfield Kenny
Telecopier No.      N/A
Telephone No.  (804) 359-5863


                                       -5-
<PAGE>


- ------------------------------------------
Needham B. Whitfield, individually and in
     the various capacities set forth on the
     attached Schedule I on behalf of the
     various record and/or beneficial holders
     of shares of Brenco Common Stock set
     forth thereon.




- ------------------------------------------
Anne Whitfield Kenny, individually and in
     the various capacities set forth on the
     attached Schedule II on behalf of the
     various record and/or beneficial holders
     of the shares of Brenco Common Stock set
     forth thereon.



                                       -6-
<PAGE>


                                                                      Schedule I


NAME OF ACCOUNT (HOLDER)              CAPACITY                 NUMBER OF SHARES*
- ------------------------              --------                 -----------------

Needham B. Whitfield                   Direct                              3,650
                            (Shares Held by Wheat First
                             Butcher Singer in Account
                                     8349-8150)


Needham B. Whitfield                   Direct                            200,000
                            (Shares Held by Wheat First
                             Butcher Singer in Account
                                     8349-7975)


Trust F/B/O Theodore               Co-Trustee (1)                         38,472
Hatch Whitfield (u/a              (Shares Held in
George Hendry Whitfield)     NationsBank Trust Account
                                 40-05-500-6500862)


Trust F/B/O Julia                  Co-Trustee (1)                         38,472
Fatheree Whitfield (u/a           (Shares Held in
George Hendry Whitfield)     NationsBank Trust Account
                                 40-05-500-6500870)


Trust F/B/O Sophia                 Co-Trustee (1)                         57,708
Nazlee Whitfield (u/a             (Shares Held in
George Hendry Whitfield)     NationsBank Trust Account
                                 40-05-500-6500888)


Trust F/B/O Alexander              Co-Trustee (1)                         57,708
Amr Whitfield (u/a                (Shares Held in
George Hendry Whitfield)     NationsBank Trust Account
                                 40-05-500-6500896)


Rieman & Co.                      General Partner                         15,082


Paka & Co. Trust                  General Partner                         15,082


Sophia N. Whitfield                Co-Trustee(2)                          31,041
Irrevocable Trust


Sophia Whitfield & Co.            General Partner                          2,000


Sophia Whitfield & Co.            General Partner                         25,000
                            (Shares Held by Wheat First
                             Butcher Singer in Account
                                     7389-4169)

<PAGE>

                                                                      Schedule I


NAME OF ACCOUNT (HOLDER)               CAPACITY                NUMBER OF SHARES*
- ------------------------               --------                -----------------

Alexander Whitfield & Co.           General Partner                       25,000
                             (Shares Held by Wheat First
                              Butcher Singer in Account
                                      1078-2326)


Alexander A. Whitfield               Co-Trustee (2)                       33,041
Irrevocable Trust


Theodore Hatch Whitfield             Co-Trustee (3)                       48,900
Trust u/w Mildred F.          (Shares Held by Wheat First
Whitfield                      Butcher Singer in Account
                                      8349-7756)


Julia Fatheree Whitfield             Co-Trustee (3)                       48,900
Trust u/w Mildred F.          (Shares Held by Wheat First
Whitfield                      Butcher Singer in Account
                                      8349-7734)



Custodian (under UGMA)                 Custodian                           1,000
for Christopher D. Harper     (Shares Held by Advest, Inc.
                                in Account 258-01599)


Custodian (under UGMA)                 Custodian                           1,000
for Jonathan D. Harper        (Shares Held by Advest, Inc.
                                in Account 258-01601)


The Micawber Foundation                President                          10,000
                             (Shares Held by Wheat First
                              Butcher Singer in Account
                                      7757-6187)


Whitfield Foundation                   President                          90,000
                             (Shares Held by Wheat First
                              Butcher Singer in Account
                                      8350-3049)


Estate of Mildred F.                Co-Executor (4)                      250,000
Whitfield                     (Shares Held by Wheat First      (Also reported by
                              Butcher Singer in Account          Anne Whitfield
                                      8350-2962)                      Kenny, as
                                                                   Co-Executor)

<PAGE>


Footnotes:

(1)  Needham B. Whitfield is co-trustee with NationsBank of Virginia, N.A.
     Needham B. Whitfield has sole voting and dispositive powers with respect to
     Brenco stock held in trust.

(2)  Needham B. Whitfield is co-trustee with his wife, Maha S. Whitfield. Either
     co-trustee may vote or sell Brenco shares held by trust.

(3)  Needham B. Whitfield is co-trustee with William J. Newman, Jr. Needham B.
     Whitfield has sole voting and dispositive powers with respect to Brenco
     stock held in trust.

(4)  Needham B. Whitfield is co-trustee with his sister Anne Whitfield Kenny.
     Both co-executors must consent to sale of Brenco shares held by the estate.

*    Shares for which no account information is given hereon are represented by
     certificates set forth on Annex III.


<PAGE>

                                                                     Schedule II


 NAME OF ACCOUNT (HOLDER)             CAPACITY               NUMBER OF SHARES
 ------------------------             --------               ----------------


     Anne Whitfield Kenny               Direct                  200,000(1)


Estate of Mildred F. Whitfield      Co-Executor(2)              250,000(2)


 Trust F/B/O of Anne Blackmon        Co-Trustee(3)               76,944
Kenny (u/a George H. Whitfield)


  Trust F/B/O Katherine Bryan        Co-Trustee(3)              115,416
Kenny (u/a George H. Whitfield)


   Anne Blackmon Kenny Trust         Co-Trustee(4)               47,814(6)
  (u/w/ Mildred F. Whitfield)


   Kathryn Bryan Kenny Trust         Co-Trustee(5)               47,811(6)
  (u/w/ Mildred F. Whitfield)


     Fatherree Foundation              President                 92,585(6)



- ---------------

(1)  Held in an account at Wheat First Butcher Singer.

(2)  Co-executor is Needham B. Whitfield and these shares are also included in
     Schedule I for Needham B. Whitfield.

(3)  Co-trustee is NationsBank of Virginia, N.A. Anne Whitfield Kenny has sole
     voting and dispositive power with respect to Brenco Stock held in the
     Trust; shares held in an account at NationsBank.

(4)  Co-trustee is William J. Newman, Jr.; Anne Whitfield Kenny has sole voting
     and dispositive power with respect to Brenco Stock held in the Trust.

(5)  Co-trustee is William J. Newman, Jr.; Anne Whitfield Kenny has sole voting
     and dispositive power with respect to Brenco Stock held in the Trust.

(6)  Shares held in an account at Davenport & Company of Virginia, Inc..




<PAGE>

                          [MAYS & VALENTINE LETTERHEAD]



     (804) 697-1200                                              01900.001

                                  June 15, 1996



Varlen Corporation
55 Shuman Boulevard, Suite 500
Naperville, Illinois  60566

                ACQUISITION AGREEMENT DATED AS OF JUNE 15, 1996 

Gentlemen:

          This firm represents Brenco, Incorporated, a Virginia corporation
("Company") in connection with the Acquisition Agreement, dated as of June 15,
1996, as the same may be modified, amended, supplemented and/or restated from
time to time (the "Acquisition Agreement"), by and among Varlen Corporation, a
Delaware corporation ("Parent"), BAS, Inc., a Virginia corporation ("Purchaser")
and the Company.  This opinion is furnished to you at the request of the Company
pursuant to Section 4.14 of the Acquisition Agreement.  Capitalized terms not
otherwise defined in this opinion have the meanings ascribed in the Acquisition
Agreement.

          In rendering this opinion, we have examined either originals, certi-
fied copies, or copies identified to our satisfaction of the following:

          A.   The Acquisition Agreement as executed by the Company, Parent and
Purchaser on the date hereof;

          B.   Articles of Incorporation and By-Laws (each as amended) of the
Company; and

          C.   Resolutions adopted at a Special Meeting of the Board of Direc-
tors of the Company on June 15, 1996.

          In addition, we have made such inquiries of law and fact, including
examination of originals, or copies certified or otherwise identified to our
satisfaction as true copies, of such certificates of public officials and other
instruments as in our judgment are necessary or appropriate to enable us to
render the opinions expressed below.  We have assumed, without 


                                        
<PAGE>


Varlen Corporation
6/19/96
Page 2


independent investigation or verification, the due authorization, execution and
delivery of the documents, instruments and agreements by all parties thereto
other than the Company.  Because we have made no independent verification of the
accuracy or completeness of the facts set forth in any of such documents and
instruments referred to herein, our opinion is based upon and subject to the
stated facts as reflected in such documents and instruments.

          For purposes of this opinion, we have assumed, and have relied on your
representation, that neither Parent, Purchaser nor any of their respective
affiliates, individually or collectively, as of June 15, 1996 or the date of
this opinion, was or is a beneficial owner of ten percent (10%) or more of any
class of outstanding voting shares of the Company.

          On the basis of the foregoing and in reliance thereon, and subject to
the qualifications, limitations and assumptions set forth herein, it is our
opinion that, as of the date hereof:

          1.   The Board of Directors of the Company has adopted the resolutions
set forth in Annex II to the Acquisition Agreement which resolutions are in full
force and effect in accordance with their terms.

          2.   Each of the members of the Board of Directors as of this date and
as of the time of the Special Meeting of the Board of the Company held on June
15, is, with respect to the Parent and the Purchaser and their respective direct
and indirect subsidiaries, in the context of the transactions contemplated by
the Acquisition Agreement, a "disinterested director" as that term is defined in
Va. Code Section 13.1-725.
          
          3.   The Offer, Merger and other transactions contemplated by the
Acquisition Agreement have been approved by a majority of the disinterested
directors of the Company.

          4.   Neither the Offer, the Merger, nor any of the other transactions 
contemplated by the Acquisition Agreement are, or after the date hereof will be,
subject to any of the restrictions or other provisions of the Affiliated
Transactions statute set forth in Article 14, Title 13.1, Chapter 9 of the Code
of Virginia (Sections 13.1-725 et seq.).

          5.   Neither the Offer, the Merger, nor any of the other transactions
contemplated by the Acquisition Agreement are, or after the date hereof will be,
subject to the supermajority shareholder vote requirement set forth in Article I
of the Company's Articles of Incorporation, as amended, and in order for the
Merger to be authorized and approved by the shareholders of the Company under
Title 13.1, Chapter 9 of the Code of Virginia, the affirmative vote of the
holders of two-thirds of the Shares (and no other corporate authorization) is
required.

          6.   The acquisition of shares of common stock of the Company pursuant
to the Acquisition Agreement qualifies, and after the date hereof will qualify,
as an "excepted 


                                        
<PAGE>


Varlen Corporation
6/19/96
Page 3


acquisition" as that term is defined in Va. Code Section 13.1-728.1.  Therefore,
the acquisition of such shares pursuant to the Offer, the Merger and the other
transactions contemplated by the Acquisition Agreement are not, and after the
date hereof will not be, subject to any of the restrictions or other provisions
of the Control Share Acquisition statute, Article 14.1, Title 13.1, Chapter 9 of
the Code of Virginia (Sections 13.1-728.1 et seq.).

          This opinion speaks only as of the date hereof, and the opinions and
statements expressed hereinabove shall not be deemed to relate to any facts or
conditions prevailing, or any law, statute, rule or regulation in effect, at any
time after the date hereof.

          This opinion is limited solely to the effect of the laws of the
Commonwealth of Virginia on the subject transaction, and we assume no responsi-
bility as to the applicability thereto, or effect thereon, of the laws of any
other jurisdiction.  This opinion is rendered solely for the benefit of, and may
be relied upon by, Parent and Purchaser, but (except as otherwise required by
law) may not be used, disseminated, circulated, quoted, referred to, or relied
upon by any other person or for any other purpose without, in each case, our
express prior written consent.

                                             Very truly yours,



                                             Mays & Valentine




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