<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
CONSOLIDATED BALANCE SHEET AND THE CONSOLIDATED STATEMENT OF INCOME 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-30-2000
<PERIOD-START> JAN-02-2000
<PERIOD-END> JUL-01-2000
<CASH> 6,307
<SECURITIES> 0
<RECEIVABLES> 19,285
<ALLOWANCES> 994
<INVENTORY> 19,172
<CURRENT-ASSETS> 47,916
<PP&E> 118,110
<DEPRECIATION> 81,362
<TOTAL-ASSETS> 96,899
<CURRENT-LIABILITIES> 19,486
<BONDS> 0
0
0
<COMMON> 1,210
<OTHER-SE> 74,860
<TOTAL-LIABILITY-AND-EQUITY> 96,899
<SALES> 43,183
<TOTAL-REVENUES> 43,183
<CGS> 27,638
<TOTAL-COSTS> 35,094
<OTHER-EXPENSES> 81
<LOSS-PROVISION> 20
<INTEREST-EXPENSE> 45
<INCOME-PRETAX> 8,137
<INCOME-TAX> 3,214
<INCOME-CONTINUING> 4,923
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 4,923
<EPS-BASIC> 1.11
<EPS-DILUTED> 1.06
</TABLE>