<ARTICLE>                     5
<LEGEND>
THIS  SCHEDULE  CONTAINS  SUMMARY  FINANCIAL   INFORMATION  EXTRACTED  FROM  THE
CONSOLIDATED  STATEMENT  OF INCOME  AND THE  CONSOLIDATED  BALANCE  SHEET AND IS
QUALIFIED IN ITS ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
       
                             
<PERIOD-TYPE>                   6-MOS
<FISCAL-YEAR-END>                          MAR-31-1998
<PERIOD-START>                             APR-01-1997
<PERIOD-END>                               SEP-30-1997
<CASH>                                          12,349
<SECURITIES>                                    22,964
<RECEIVABLES>                                   44,070
<ALLOWANCES>                                         0
<INVENTORY>                                      8,951
<CURRENT-ASSETS>                                92,755
<PP&E>                                          52,081
<DEPRECIATION>                                  38,215
<TOTAL-ASSETS>                                 106,937
<CURRENT-LIABILITIES>                           22,999
<BONDS>                                              0
<PREFERRED-MANDATORY>                                0
<PREFERRED>                                          0
<COMMON>                                           129
<OTHER-SE>                                      82,829
<TOTAL-LIABILITY-AND-EQUITY>                   106,937
<SALES>                                         72,169
<TOTAL-REVENUES>                                72,169
<CGS>                                           53,894
<TOTAL-COSTS>                                   69,647
<OTHER-EXPENSES>                                     0
<LOSS-PROVISION>                                     0
<INTEREST-EXPENSE>                                   0
<INCOME-PRETAX>                                  3,473
<INCOME-TAX>                                     1,164
<INCOME-CONTINUING>                              2,309
<DISCONTINUED>                                       0
<EXTRAORDINARY>                                      0
<CHANGES>                                            0
<NET-INCOME>                                     2,309
<EPS-PRIMARY>                                     0.18
<EPS-DILUTED>                                     0.18