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 6130-01-165-6625
NSN 6130-01-397-5834
NSN 5996-01-559-0284
NSN 6320-01-459-6992
NSN 5945-00-219-7452
NSN 6320-01-029-4220
NSN 6135-01-026-9960
NSN 6110-01-646-0840
NSN 5975-00-172-5594
NSN 6620-01-236-6290
NSN 7035-00-585-2113
NSN 5835-01-360-2657