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 5915-00-844-2487
NSN 5910-00-163-1777
NSN 5998-01-269-1212
NSN 5930-01-038-9956
NSN 5990-00-489-7834
NSN 5925-01-210-1678
NSN 5999-01-461-4072
NSN 5935-01-617-4956
NSN 2925-01-424-0235
NSN 5985-00-610-2327
NSN 6650-00-932-7555
NSN 5960-01-425-1454