Screw term.
An instrument used to count the frequency of recurrent electronic events and display the count on the panel of the instrument in numeric form. May also include facilities for a readout printed on tape. May include facilities for a very accurate output which can be used as a secondary transfer standard. It can be used to measure frequency, period, time interval, phase angle, frequency ratio, and for multiple period averaging. See also counter, electronic, digital and indicator, digital display.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 6610-01-560-9461
NSN 6135-01-578-8919
NSN 6130-01-313-2596
NSN 5996-01-169-4794
NSN 5960-01-309-0361
NSN 5999-01-096-2114
NSN 6145-00-881-4203
NSN 6685-00-774-5106
NSN 2925-01-109-7177
NSN 7035-00-574-4223
NSN 5920-00-466-3950
NSN 6105-01-266-6866