<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> 9-MOS
<FISCAL-YEAR-END> DEC-30-2000
<PERIOD-START> JAN-02-2000
<PERIOD-END> SEP-30-2000
<CASH> 10,424
<SECURITIES> 0
<RECEIVABLES> 16,795
<ALLOWANCES> 942
<INVENTORY> 18,009
<CURRENT-ASSETS> 48,619
<PP&E> 121,213
<DEPRECIATION> 83,187
<TOTAL-ASSETS> 98,351
<CURRENT-LIABILITIES> 19,236
<BONDS> 0
0
0
<COMMON> 1,210
<OTHER-SE> 76,486
<TOTAL-LIABILITY-AND-EQUITY> 98,351
<SALES> 43,440
<TOTAL-REVENUES> 43,440
<CGS> 29,091
<TOTAL-COSTS> 36,094
<OTHER-EXPENSES> (54)
<LOSS-PROVISION> 19
<INTEREST-EXPENSE> 133
<INCOME-PRETAX> 7,354
<INCOME-TAX> 2,905
<INCOME-CONTINUING> 4,449
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 4,449
<EPS-BASIC> 1.01
<EPS-DILUTED> 0.97
</TABLE>