
<TABLE> <S> <C>

<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000

<S>                             <C>
<PERIOD-TYPE>                   YEAR
<FISCAL-YEAR-END>                          SEP-30-1999
<PERIOD-END>                               SEP-30-1999
<CASH>                                          38,287
<SECURITIES>                                         0
<RECEIVABLES>                                  203,403
<ALLOWANCES>                                     3,403
<INVENTORY>                                    164,486
<CURRENT-ASSETS>                               413,503
<PP&E>                                         435,991
<DEPRECIATION>                                 275,191
<TOTAL-ASSETS>                                 666,090
<CURRENT-LIABILITIES>                          109,650
<BONDS>                                         48,760
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                         1,027
<OTHER-SE>                                     482,983
<TOTAL-LIABILITY-AND-EQUITY>                   666,090
<SALES>                                        791,760
<TOTAL-REVENUES>                               791,760
<CGS>                                          540,075
<TOTAL-COSTS>                                  540,075
<OTHER-EXPENSES>                               203,774
<LOSS-PROVISION>                                 1,325
<INTEREST-EXPENSE>                               5,329
<INCOME-PRETAX>                                 49,178
<INCOME-TAX>                                    18,751
<INCOME-CONTINUING>                             30,427
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    30,427
<EPS-BASIC>                                       0.37
<EPS-DILUTED>                                     0.37


</TABLE>
