<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM CONSOLIDATED
BALANCE SHEET AND CONSOLIDATED STATEMENT OF EARNINGS AND IS QUALIFIED IN ITS
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> MAR-31-2000
<PERIOD-START> APR-01-1999
<PERIOD-END> MAR-31-2000
<CASH> 10,687
<SECURITIES> 0
<RECEIVABLES> 14,800
<ALLOWANCES> 0
<INVENTORY> 12,663
<CURRENT-ASSETS> 41,102
<PP&E> 36,979
<DEPRECIATION> (21,620)
<TOTAL-ASSETS> 61,593
<CURRENT-LIABILITIES> 8,419
<BONDS> 0
0
0
<COMMON> 334
<OTHER-SE> 51,974
<TOTAL-LIABILITY-AND-EQUITY> 61,593
<SALES> 74,297
<TOTAL-REVENUES> 74,357
<CGS> 42,407
<TOTAL-COSTS> 66,629
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 422
<INTEREST-EXPENSE> 0
<INCOME-PRETAX> 8,818
<INCOME-TAX> 2,877
<INCOME-CONTINUING> 5,941
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 5,941
<EPS-BASIC> .87
<EPS-DILUTED> .86
</TABLE>