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 5895-00-334-9269
NSN 5985-01-428-9964
NSN 4140-01-236-2930
NSN 6685-01-243-1265
NSN 7035-01-202-8172
NSN 5895-01-186-4368
NSN 5935-00-851-5918
NSN 6150-01-600-0000
NSN 6685-00-605-9738
NSN 2925-00-008-5485
NSN 6220-01-167-5436
NSN 6645-00-287-9192