<ARTICLE> 5
<MULTIPLIER> 1,000
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          NOV-30-1997
<PERIOD-START>                             DEC-01-1996
<PERIOD-END>                               MAY-31-1997
<CASH>                                          51,620
<SECURITIES>                                    31,281
<RECEIVABLES>                                   56,178
<ALLOWANCES>                                         0
<INVENTORY>                                     59,390
<CURRENT-ASSETS>                               178,110
<PP&E>                                         173,119
<DEPRECIATION>                                 128,713
<TOTAL-ASSETS>                                 316,602
<CURRENT-LIABILITIES>                           32,489
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        65,089
<OTHER-SE>                                     207,979
<TOTAL-LIABILITY-AND-EQUITY>                   316,602
<SALES>                                        223,004
<TOTAL-REVENUES>                               228,446
<CGS>                                          192,931
<TOTAL-COSTS>                                  234,410
<OTHER-EXPENSES>                                13,929
<LOSS-PROVISION>                                 6,235
<INTEREST-EXPENSE>                               4,000
<INCOME-PRETAX>                               (19,893)
<INCOME-TAX>                                   (9,301)
<INCOME-CONTINUING>                           (10,592)
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                  (10,592)
<EPS-PRIMARY>                                    (.81)
<EPS-DILUTED>                                        0