<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> JUN-28-1997 <CASH> 68 <SECURITIES> 0 <RECEIVABLES> 18,708 <ALLOWANCES> 152 <INVENTORY> 25,924 <CURRENT-ASSETS> 50,161 <PP&E> 61,450 <DEPRECIATION> 33,047 <TOTAL-ASSETS> 99,677 <CURRENT-LIABILITIES> 25,974 <BONDS> 0 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 73 <OTHER-SE> 65,534 <TOTAL-LIABILITY-AND-EQUITY> 99,677 <SALES> 74,689 <TOTAL-REVENUES> 74,689 <CGS> 49,831 <TOTAL-COSTS> 49,831 <OTHER-EXPENSES> 13,581 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 395 <INCOME-PRETAX> 10,882 <INCOME-TAX> 4,572 <INCOME-CONTINUING> 6,310 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 6,310 <EPS-PRIMARY> 0.80 <EPS-DILUTED> 0.79