<TABLE> <S> <C>
<PAGE>
<ARTICLE> 5
<MULTIPLIER> 1,000
<S> <C>
<PERIOD-TYPE> 12-MOS
<FISCAL-YEAR-END> JUN-30-2000
<PERIOD-START> JUL-01-1999
<PERIOD-END> JUN-30-2000
<CASH> 2,277
<SECURITIES> 3,246
<RECEIVABLES> 12,686<F1>
<ALLOWANCES> 0
<INVENTORY> 16,133
<CURRENT-ASSETS> 36,696
<PP&E> 46,859
<DEPRECIATION> 23,957
<TOTAL-ASSETS> 59,787
<CURRENT-LIABILITIES> 9,609
<BONDS> 3,486
0
0
<COMMON> 84
<OTHER-SE> 44,237
<TOTAL-LIABILITY-AND-EQUITY> 59,787
<SALES> 66,508
<TOTAL-REVENUES> 66,508
<CGS> 36,404
<TOTAL-COSTS> 36,404
<OTHER-EXPENSES> 0
<LOSS-PROVISION> 0
<INTEREST-EXPENSE> 406
<INCOME-PRETAX> 13,956
<INCOME-TAX> 4,885
<INCOME-CONTINUING> 9,071
<DISCONTINUED> 0
<EXTRAORDINARY> 0
<CHANGES> 0
<NET-INCOME> 9,071
<EPS-BASIC> 1.18
<EPS-DILUTED> 1.11
<FN>
<F1>note: receivables shown net of allowance of 530
</FN>
</TABLE>