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 6135-01-031-8078
NSN 5990-01-242-9653
NSN 6620-00-518-3595
NSN 5950-01-103-3603
NSN 5935-01-080-3323
NSN 5960-01-487-6436
NSN 6145-00-929-9406
NSN 5990-01-161-4625
NSN 5999-00-737-6416
NSN 4140-01-322-8491
NSN 5920-01-464-3863
NSN 6320-00-636-0922