<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1997 <PERIOD-START> JAN-01-1997 <PERIOD-END> MAR-31-1997 <CASH> 72,683 <SECURITIES> 6,599 <RECEIVABLES> 168,125 <ALLOWANCES> 2,776 <INVENTORY> 160,198 <CURRENT-ASSETS> 427,431 <PP&E> 460,703 <DEPRECIATION> 261,838 <TOTAL-ASSETS> 685,490 <CURRENT-LIABILITIES> 199,577 <BONDS> 64,030 <COMMON> 4,963 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 395,388 <TOTAL-LIABILITY-AND-EQUITY> 685,490 <SALES> 280,721 <TOTAL-REVENUES> 280,721 <CGS> 172,958 <TOTAL-COSTS> 172,958 <OTHER-EXPENSES> 72,283 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,623 <INCOME-PRETAX> 33,857 <INCOME-TAX> 12,808 <INCOME-CONTINUING> 21,049 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 21,049 <EPS-PRIMARY> 0.85 <EPS-DILUTED> 0.85