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 6105-01-112-2308
NSN 5996-01-507-6746
NSN 4140-00-958-9730
NSN 5999-01-170-3766
NSN 6130-00-740-3884
NSN 7035-01-013-9889
NSN 5965-01-527-8847
NSN 5895-01-167-8298
NSN 6650-01-016-9423
NSN 6220-01-641-2370
NSN 5930-01-551-8692
NSN 5910-00-269-4755