<ARTICLE> 5
<MULTIPLIER> 1
<CURRENCY> U.S. DOLLARS
       
                                                  
<PERIOD-TYPE>                   6-MOS                   6-MOS
<FISCAL-YEAR-END>                          DEC-31-1997             DEC-31-1998
<PERIOD-START>                             DEC-31-1996             DEC-31-1997
<PERIOD-END>                               JUN-27-1997             JUL-03-1998
<EXCHANGE-RATE>                                      1                       1
<CASH>                                           3,736                  43,983
<SECURITIES>                                         0                       0
<RECEIVABLES>                                   14,915                  17,934
<ALLOWANCES>                                         0                       0
<INVENTORY>                                     14,637                  13,824
<CURRENT-ASSETS>                                45,770                  88,536
<PP&E>                                          81,020                  80,439
<DEPRECIATION>                                  40,605                  40,679
<TOTAL-ASSETS>                                 146,762                 145,808
<CURRENT-LIABILITIES>                           26,878                  29,015
<BONDS>                                              0                       0
<PREFERRED-MANDATORY>                                0                       0
<PREFERRED>                                          0                       0
<COMMON>                                        18,845                  20,459
<OTHER-SE>                                      76,935                  74,935
<TOTAL-LIABILITY-AND-EQUITY>                   146,762                 145,808
<SALES>                                         87,657                  84,567
<TOTAL-REVENUES>                                87,657                  84,567
<CGS>                                           67,166                  65,617
<TOTAL-COSTS>                                   23,582                  20,944
<OTHER-EXPENSES>                                 2,726                   3,076
<LOSS-PROVISION>                                     0                       0
<INTEREST-EXPENSE>                                  78                     222
<INCOME-PRETAX>                                (5,631)                 (4,615)
<INCOME-TAX>                                   (1,917)                 (1,711)
<INCOME-CONTINUING>                            (3,714)                 (2,904)
<DISCONTINUED>                                     380                     904
<EXTRAORDINARY>                                      0                       0
<CHANGES>                                            0                       0
<NET-INCOME>                                   (3,334)                 (2,000)
<EPS-PRIMARY>                                    (.52)                   (.31)
<EPS-DILUTED>                                    (.52)                   (.31)