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 7035-00-206-6123
NSN 6105-00-482-9162
NSN 6650-01-399-0628
NSN 2925-01-285-0919
NSN 5930-01-597-3879
NSN 5945-00-830-2809
NSN
NSN 6105-00-775-6072
NSN 6150-00-583-9878
NSN 5920-00-816-7535
NSN 6610-01-486-4522
NSN 5925-01-415-4641