<ARTICLE> 5
<LEGEND>
This Schedule contains summary financial
information extracted from the financial
statements contained in the body of the
accompanying Form 10-Q and is qualified in
its entirety by reference to such financial
statements.
</LEGEND>
<MULTIPLIER>       1,000
       
                                              
<PERIOD-TYPE>                                        3-MOS
<FISCAL-YEAR-END>                                    DEC-31-1997
<PERIOD-END>                                         MAR-31-1998
<CASH>                                               24,192
<SECURITIES>                                         2,031
<RECEIVABLES>                                        27,132
<ALLOWANCES>                                         0
<INVENTORY>                                          34,766
<CURRENT-ASSETS>                                     115,936
<PP&E>                                               105,395
<DEPRECIATION>                                       78,941
<TOTAL-ASSETS>                                       182,485
<CURRENT-LIABILITIES>                                38,257
<BONDS>                                              8,746
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                             14,374
<OTHER-SE>                                           88,931
<TOTAL-LIABILITY-AND-EQUITY>                         182,485
<SALES>                                              47,227
<TOTAL-REVENUES>                                     47,893
<CGS>                                                33,653
<TOTAL-COSTS>                                        44,028
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   108
<INCOME-PRETAX>                                      3,757
<INCOME-TAX>                                         1,434
<INCOME-CONTINUING>                                  2,323
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                         2,323
<EPS-PRIMARY>                                        .19
<EPS-DILUTED>                                        .18