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 6110-01-238-1315
NSN 2925-00-963-0943
NSN 6320-00-194-4252
NSN 6150-01-209-0970
NSN 6645-00-181-1877
NSN 7035-01-656-4508
NSN 5996-01-344-1371
NSN 5930-01-641-4185
NSN 5985-00-050-0336
NSN 5985-00-837-5597
NSN 5965-00-805-4893
NSN 5990-01-219-2703