<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> JUN-27-1997 <CASH> 16,161 <SECURITIES> 0 <RECEIVABLES> 72,426 <ALLOWANCES> 1,039 <INVENTORY> 91,987 <CURRENT-ASSETS> 197,663 <PP&E> 437,524 <DEPRECIATION> 283,303 <TOTAL-ASSETS> 380,172 <CURRENT-LIABILITIES> 82,079 <BONDS> 18,705 <COMMON> 21,969 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 208,007 <TOTAL-LIABILITY-AND-EQUITY> 380,172 <SALES> 213,062 <TOTAL-REVENUES> 213,062 <CGS> 157,584 <TOTAL-COSTS> 193,705 <OTHER-EXPENSES> (652) <LOSS-PROVISION> 148 <INTEREST-EXPENSE> 364 <INCOME-PRETAX> 19,497 <INCOME-TAX> 5,518 <INCOME-CONTINUING> 13,979 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 13,979 <EPS-PRIMARY> .85 <EPS-DILUTED> .84