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 5998-00-374-2088
NSN 5895-01-006-2309
NSN 6135-00-519-1325
NSN 5835-01-384-3206
NSN 6685-00-799-2964
NSN 5915-01-073-2578
NSN 5985-00-143-3618
NSN 6220-00-487-0403
NSN 5920-01-502-0874
NSN 6145-01-634-0388
NSN 6145-01-389-4350
NSN 6105-00-519-1113