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 6620-00-621-6951
NSN 5895-01-114-6081
NSN 5998-01-008-4999
NSN 6240-01-159-8314
NSN 5920-00-432-1515
NSN 5835-01-241-1090
NSN 6650-01-044-5431
NSN 6220-01-088-4509
NSN 5920-01-655-6301
NSN 6650-01-450-0790
NSN 6685-01-092-3258
NSN 6650-01-606-9209