<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-2000 <PERIOD-END> MAR-31-2000 <CASH> 80,349 <SECURITIES> 0 <RECEIVABLES> 201,425 <ALLOWANCES> 0 <INVENTORY> 120,614 <CURRENT-ASSETS> 412,540 <PP&E> 424,168 <DEPRECIATION> 210,603 <TOTAL-ASSETS> 838,526 <CURRENT-LIABILITIES> 280,490 <BONDS> 0 <COMMON> 56,988 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 153,960 <TOTAL-LIABILITY-AND-EQUITY> 838,526 <SALES> 224,823 <TOTAL-REVENUES> 224,823 <CGS> 100,326 <TOTAL-COSTS> 100,326 <OTHER-EXPENSES> 84,748 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 7,034 <INCOME-PRETAX> 33,181 <INCOME-TAX> 6,968 <INCOME-CONTINUING> 26,213 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 26,213 <EPS-BASIC> 0.58 <EPS-DILUTED> 0.56