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 6220-01-476-6204
NSN 6620-01-130-3139
NSN 6105-01-154-6922
NSN 6130-01-056-5251
NSN 5910-00-494-6113
NSN 6150-00-580-0511
NSN 6135-01-213-7339
NSN 5990-01-542-4212
NSN 6130-00-651-4672
NSN 5985-01-386-5898
NSN 6105-01-541-3245
NSN 5990-01-419-0661