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 5930-01-236-1531
NSN 6145-01-386-3976
NSN 5945-01-312-8789
NSN 5999-01-503-2918
NSN 5920-01-259-5461
NSN 5905-00-306-0816
NSN 6610-00-155-1334
NSN 6110-01-633-9660
NSN 5910-01-259-7006
NSN 6130-01-486-6660
NSN 6220-01-188-6962
NSN 6650-01-162-8324