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 6320-00-593-0379
NSN 6145-01-615-1837
NSN 5945-00-854-1234
NSN 5950-00-008-4579
NSN 5835-00-729-9305
NSN 7035-00-371-7749
NSN 6650-01-555-8349
NSN 5835-01-197-9880
NSN 6320-01-036-2598
NSN 5990-01-027-1869
NSN 5855-01-434-2825
NSN 6130-00-499-7104