<ARTICLE> 5 <MULTIPLIER> 1,000 <PERIOD-TYPE> 6-MOS <FISCAL-YEAR-END> DEC-31-1998 <PERIOD-END> JUN-30-1998 <CASH> 2,896 <SECURITIES> 26,456 <RECEIVABLES> 161,671 <ALLOWANCES> 0 <INVENTORY> 131,836 <CURRENT-ASSETS> 335,947 <PP&E> 401,972 <DEPRECIATION> 182,679 <TOTAL-ASSETS> 745,635 <CURRENT-LIABILITIES> 283,273 <BONDS> 0 <COMMON> 56,988 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <OTHER-SE> 100,961 <TOTAL-LIABILITY-AND-EQUITY> 745,635 <SALES> 360,834 <TOTAL-REVENUES> 360,834 <CGS> 171,936 <TOTAL-COSTS> 171,936 <OTHER-EXPENSES> 161,307 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 14,131 <INCOME-PRETAX> (50,429) <INCOME-TAX> 12,186 <INCOME-CONTINUING> 38,243 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 38,243 <EPS-PRIMARY> 0.87 <EPS-DILUTED> 0.86