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 6685-01-189-2377
NSN 5935-01-205-0162
NSN 6145-00-351-4539
NSN 6620-01-652-4349
NSN 6130-01-086-8897
NSN 6685-01-168-8194
NSN 5999-01-399-0507
NSN 5910-00-831-7740
NSN 6610-01-579-7000
NSN 5990-01-174-6851
NSN 5996-01-369-7999
NSN 5999-01-659-5514