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 7035-01-094-2365
NSN 5935-00-078-7763
NSN 6620-00-010-8190
NSN 5999-01-431-7323
NSN 5855-01-604-0801
NSN 4140-01-654-4755
NSN 6320-01-201-2776
NSN 5960-01-143-1202
NSN 5996-01-497-3412
NSN 6685-00-556-1896
NSN 5835-01-200-7153
NSN 6130-01-204-9012