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 6645-01-496-0073
NSN 5999-00-545-1492
NSN 6320-01-607-1491
NSN 6150-00-278-1294
NSN 5965-01-205-6249
NSN 5960-01-094-7569
NSN 6110-01-608-1516
NSN 6110-01-068-0301
NSN 6105-01-227-1194
NSN 5998-00-917-2051
NSN 5996-00-035-5624
NSN 5999-00-629-8151