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 6620-01-234-1044
NSN 6685-01-111-8712
NSN 5930-01-261-7893
NSN 5905-01-021-7423
NSN 6130-00-374-7540
NSN 7035-01-494-7900
NSN 6110-00-019-0160
NSN 6620-01-658-8133
NSN 5950-00-529-0264
NSN 5998-01-474-5577
NSN 5935-01-090-4880
NSN 5925-00-889-2707