<TABLE> <S> <C>

<PAGE>
 
<ARTICLE> 5
<RESTATED> 
<MULTIPLIER> 1,000
       
<S>                             <C>                     <C>                     <C>
<PERIOD-TYPE>                   3-MOS                   6-MOS                   9-MOS
<FISCAL-YEAR-END>                          DEC-31-1998             DEC-31-1998             DEC-31-1998
<PERIOD-START>                             JAN-01-1998             JAN-01-1998             JAN-01-1998
<PERIOD-END>                               MAR-31-1998             JUN-30-1998             SEP-30-1998
<CASH>                                          21,866                  10,123                  21,306
<SECURITIES>                                         0                       0                       0
<RECEIVABLES>                                  141,446                 139,040                 136,802
<ALLOWANCES>                                     4,309                   5,235                   5,405
<INVENTORY>                                    155,768                 161,820                 158,980
<CURRENT-ASSETS>                             1,060,237               1,044,382               1,050,397
<PP&E>                                         359,864                 378,262                 425,382
<DEPRECIATION>                                  74,346                  84,375                 109,448
<TOTAL-ASSETS>                               1,740,642               1,738,854               1,758,228
<CURRENT-LIABILITIES>                          976,613                 995,477               1,010,953
<BONDS>                                        206,742                 154,000                 123,098
<PREFERRED-MANDATORY>                           61,360                  62,741                  64,153
<PREFERRED>                                          0                       0                       0
<COMMON>                                         1,000                   1,000                   1,000
<OTHER-SE>                                     287,827                 313,627                 353,067
<TOTAL-LIABILITY-AND-EQUITY>                 1,740,642               1,738,854               1,758,228
<SALES>                                        328,365                 664,061                 995,715
<TOTAL-REVENUES>                               328,365                 664,061                 995,715
<CGS>                                          252,656<F1>             510,024<F1>             760,206<F1>
<TOTAL-COSTS>                                  252,656                 510,024                 760,206
<OTHER-EXPENSES>                                 5,150<F1>               9,523<F1>              14,135<F1>
<LOSS-PROVISION>                                     0                       0                       0
<INTEREST-EXPENSE>                               3,753                   7,266                  10,370
<INCOME-PRETAX>                                 40,817                  86,473                 145,173
<INCOME-TAX>                                    16,327                  34,590                  55,166
<INCOME-CONTINUING>                             24,490                  51,883                  90,007
<DISCONTINUED>                                       0                       0                       0
<EXTRAORDINARY>                                      0                       0                       0
<CHANGES>                                            0                       0                       0
<NET-INCOME>                                    24,490                  51,883                  90,007
<EPS-PRIMARY>                                      .23                     .49                     .86
<EPS-DILUTED>                                      .23                     .49                     .86
        
<FN>
<F1> FINANCIAL DATA SCHEDULES PREVIOUSLY FILED FOR THE REPORTING PERIODS ENDED
MAR-30-1998, JUN-30-1998 AND SEP-30-1998 ARE BEING RECLASSIFIED TO BE CONSISTENT
WITH THE DECEMBER 31, 1998 FULL YEAR PRESENTATION. THE RECLASSIFICATIONS ARE TO
COST OF SALES FROM DEPRECIATION AND AMORTIZATION, SELLING, GENERAL AND
ADMINISTRATIVE EXPENSE, AND OTHER-EXPENSE. 
</FN>

</TABLE>