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 5910-00-126-6934
NSN 5895-01-534-3620
NSN 7035-00-557-5570
NSN 6105-01-064-3165
NSN 5855-00-560-0110
NSN 5985-01-445-6667
NSN 6610-01-631-4355
NSN 5945-00-209-9784
NSN 5965-01-258-8735
NSN 5895-00-771-7858
NSN 5935-01-541-0446
NSN 6645-01-556-5263