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 5855-01-660-5088
NSN 7035-00-574-4223
NSN 6110-00-351-8996
NSN 5925-00-902-3240
NSN 5998-01-233-1042
NSN 5996-01-312-0790
NSN 6220-00-774-1318
NSN 5925-01-398-0013
NSN 6240-00-912-5186
NSN 6220-01-411-8267
NSN 5975-00-615-8679
NSN 6145-00-530-8427