An item which generates a highly accurate signal of one or more fixed frequencies for calibration of frequencies from other sources. Does not include oscillator (as modified). For devices which are designed as voltage sources, see generator, signal. See also frequency meter.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 6135-01-508-6083
NSN 6685-00-492-1357
NSN 6645-01-600-2080
NSN 6135-00-962-4111
NSN 6135-00-715-4001
NSN 5985-00-709-9256
NSN 5935-01-185-9388
NSN 5915-01-295-6645
NSN 5996-00-923-1290
NSN 5965-01-607-5435
NSN 6610-01-252-1096
NSN 5925-01-196-5123