Black housing. Weapon system essential
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 6650-01-471-6476
NSN 6645-00-763-1424
NSN 6150-00-593-5199
NSN 5975-00-886-8200
NSN 5975-01-027-0253
NSN 5920-00-161-4564
NSN 4140-01-227-9726
NSN 6320-01-397-9995
NSN 5915-00-420-1557
NSN 6320-01-519-8767
NSN 5965-00-421-9007
NSN 6110-01-350-3449