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 6130-00-101-0566
NSN 5920-00-410-4384
NSN 5915-01-412-8667
NSN 6145-01-433-3886
NSN 5895-01-006-7932
NSN 5925-01-498-5089
NSN 5990-01-227-6526
NSN 6145-00-961-0775
NSN 5910-00-255-6228
NSN 5935-01-344-8709
NSN 5905-01-286-5521
NSN 6320-01-279-0343