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 7035-01-328-7448
NSN 5905-01-578-2604
NSN 5945-01-514-6343
NSN 6145-00-905-6797
NSN 2925-00-973-9413
NSN 6620-01-116-3983
NSN 5855-01-288-6341
NSN 5915-01-620-4302
NSN 6110-00-147-3149
NSN 5975-01-255-6828
NSN 5990-00-962-2806
NSN 5905-00-103-6461