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 5915-00-518-4656
NSN 6610-01-630-7202
NSN 2925-00-017-9807
NSN 5945-00-834-2932
NSN 6110-00-846-9413
NSN 6220-01-316-5916
NSN 7035-01-268-0933
NSN 5965-01-495-1170
NSN 6130-01-412-9515
NSN 7035-01-240-4998
NSN 6240-01-350-4318
NSN 6320-01-098-2503