<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS

                             
<PERIOD-TYPE>                   12-MOS
<FISCAL-YEAR-END>                          DEC-31-1999
<PERIOD-START>                             JAN-01-1999
<PERIOD-END>                               DEC-31-1999
<EXCHANGE-RATE>                                      1
<CASH>                                          14,547
<SECURITIES>                                         0
<RECEIVABLES>                                   55,018
<ALLOWANCES>                                       504
<INVENTORY>                                     59,439
<CURRENT-ASSETS>                               132,396
<PP&E>                                         109,304
<DEPRECIATION>                                  55,886
<TOTAL-ASSETS>                                 250,494
<CURRENT-LIABILITIES>                           43,597
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                        37,816
<OTHER-SE>                                     169,081
<TOTAL-LIABILITY-AND-EQUITY>                   250,494
<SALES>                                        216,193
<TOTAL-REVENUES>                               216,193
<CGS>                                           96,504
<TOTAL-COSTS>                                   96,504
<OTHER-EXPENSES>                                89,989
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                 29,561
<INCOME-TAX>                                     9,073
<INCOME-CONTINUING>                             20,488
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                    20,488
<EPS-BASIC>                                       1.50
<EPS-DILUTED>                                     1.49