<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM FORM 10-Q
FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2000 AND IS QUALIFIED IN ITS ENTIRETY BY
REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 6-MOS
<FISCAL-YEAR-END> DEC-31-2000
<PERIOD-START> JAN-01-2000
<PERIOD-END> JUN-30-2000
<CASH> 8,266
<SECURITIES> 0
<RECEIVABLES> 138,271
<ALLOWANCES> 995
<INVENTORY> 36,914
<CURRENT-ASSETS> 249,135
<PP&E> 139,913
<DEPRECIATION> 79,892
<TOTAL-ASSETS> 333,127
<CURRENT-LIABILITIES> 109,885
<BONDS> 30,000
0
0
<COMMON> 33,549
<OTHER-SE> 150,471
<TOTAL-LIABILITY-AND-EQUITY> 333,127
<SALES> 355,159
<TOTAL-REVENUES> 355,159
<CGS> 305,387
<TOTAL-COSTS> 305,387
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 903
<INCOME-PRETAX> 21,062
<INCOME-TAX> 8,412
<INCOME-CONTINUING> 12,650
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 12,650
<EPS-BASIC> 1.74
<EPS-DILUTED> 1.68
</TABLE>