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 6150-01-014-5691
NSN 5960-01-614-8005
NSN 6145-00-705-6686
NSN 6650-00-862-2142
NSN 6105-01-016-0986
NSN 5996-00-620-6130
NSN 2925-00-163-9016
NSN 5855-01-492-6913
NSN 5999-00-674-8867
NSN 6320-00-116-3658
NSN 7035-01-348-5153
NSN 6685-01-495-3712