<ARTICLE> 5
<MULTIPLIER>        1,000
       
                                
<PERIOD-TYPE>                      3-MOS
<FISCAL-YEAR-END>             DEC-31-1998
<PERIOD-END>                  MAR-31-1998
<CASH>                              1,381
<SECURITIES>                       32,358
<RECEIVABLES>                     180,811
<ALLOWANCES>                        2,782
<INVENTORY>                       141,677
<CURRENT-ASSETS>                  369,305
<PP&E>                            383,100
<DEPRECIATION>                    169,242
<TOTAL-ASSETS>                    776,716
<CURRENT-LIABILITIES>             303,359
<BONDS>                                 0
<COMMON>                           56,988
<PREFERRED-MANDATORY>                   0
<PREFERRED>                             0
<OTHER-SE>                        102,896
<TOTAL-LIABILITY-AND-EQUITY>      776,716
<SALES>                           185,662
<TOTAL-REVENUES>                  185,662
<CGS>                              86,429
<TOTAL-COSTS>                      86,429
<OTHER-EXPENSES>                   86,588
<LOSS-PROVISION>                        0
<INTEREST-EXPENSE>                  7,073
<INCOME-PRETAX>                    41,780
<INCOME-TAX>                       10,370
<INCOME-CONTINUING>                31,410
<DISCONTINUED>                          0
<EXTRAORDINARY>                         0
<CHANGES>                               0
<NET-INCOME>                       31,410
<EPS-PRIMARY>                        0.72
<EPS-DILUTED>                        0.71