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 6240-01-388-2413
NSN 5905-01-240-5160
NSN 6650-01-419-3793
NSN 5960-01-454-7064
NSN 6110-01-119-7565
NSN 6105-01-660-1575
NSN 5930-01-215-0802
NSN 6130-00-459-7692
NSN 5945-00-925-9992
NSN 5960-01-411-5899
NSN 5855-01-658-4510
NSN 6105-01-157-3021