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 6320-01-455-3394
NSN 5975-01-450-3173
NSN 6150-00-884-8530
NSN 5998-01-176-8310
NSN 5996-01-044-2465
NSN 2925-01-125-9169
NSN 5855-01-483-1350
NSN 6685-01-401-5360
NSN 5999-00-437-6503
NSN 5990-01-633-9503
NSN 5945-00-682-2604
NSN 6105-00-919-8466