<ARTICLE> 5 <LEGEND> THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE FINANCIAL STATEMENTS CONTAINED IN ITEM 1 OF FORM 10-Q FOR THE PERIOD ENDED MARCH 31, 1999 AND IS QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS. FIGURES ARE ROUNDED TO THE NEAREST 100,000 (EXCEPT EPS). </LEGEND> <MULTIPLIER> 1,000 <PERIOD-TYPE> 3-MOS <FISCAL-YEAR-END> DEC-31-1999 <PERIOD-START> JAN-01-1999 <PERIOD-END> MAR-31-1999 <CASH> 5,400 <SECURITIES> 0 <RECEIVABLES> 197,500 <ALLOWANCES> 0 <INVENTORY> 128,100 <CURRENT-ASSETS> 361,500 <PP&E> 842,700 <DEPRECIATION> (524,100) <TOTAL-ASSETS> 751,400 <CURRENT-LIABILITIES> 186,900 <BONDS> 81,900 <PREFERRED-MANDATORY> 0 <PREFERRED> 0 <COMMON> 23,000 <OTHER-SE> 407,300 <TOTAL-LIABILITY-AND-EQUITY> 751,400 <SALES> 225,000 <TOTAL-REVENUES> 225,000 <CGS> 157,700 <TOTAL-COSTS> 157,700 <OTHER-EXPENSES> 0 <LOSS-PROVISION> 0 <INTEREST-EXPENSE> 1,000 <INCOME-PRETAX> 20,800 <INCOME-TAX> 7,300 <INCOME-CONTINUING> 13,500 <DISCONTINUED> 0 <EXTRAORDINARY> 0 <CHANGES> 0 <NET-INCOME> 13,500 <EPS-PRIMARY> 0.59 <EPS-DILUTED> 0.59