<ARTICLE> 5
<MULTIPLIER> 1,000
<CURRENCY> U.S. DOLLARS
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          MAY-31-1999
<PERIOD-START>                             JUN-01-1998
<PERIOD-END>                               NOV-30-1998
<EXCHANGE-RATE>                                      1
<CASH>                                             316
<SECURITIES>                                         0
<RECEIVABLES>                                    6,854
<ALLOWANCES>                                        52
<INVENTORY>                                     10,132
<CURRENT-ASSETS>                                19,675
<PP&E>                                          16,767
<DEPRECIATION>                                  12,980
<TOTAL-ASSETS>                                  25,788
<CURRENT-LIABILITIES>                           13,060
<BONDS>                                              0
<PREFERRED-MANDATORY>                            4,666
<PREFERRED>                                          0
<COMMON>                                        16,473
<OTHER-SE>                                      14,124
<TOTAL-LIABILITY-AND-EQUITY>                    25,788
<SALES>                                         22,271
<TOTAL-REVENUES>                                22,041
<CGS>                                           16,768
<TOTAL-COSTS>                                   20,635
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                 547
<INCOME-PRETAX>                                  1,406
<INCOME-TAX>                                       474
<INCOME-CONTINUING>                              1,880
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     1,880
<EPS-PRIMARY>                                      .49
<EPS-DILUTED>                                      .43