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 6145-00-252-8969
NSN 5990-00-075-4053
NSN 5996-01-391-4529
NSN 5999-00-432-0765
NSN 6610-00-632-1925
NSN 6620-01-381-6225
NSN 5910-01-012-8181
NSN 5895-01-116-2525
NSN 6110-00-525-3418
NSN 5935-01-145-1248
NSN 5895-01-278-6761
NSN 6645-01-006-6735