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 6130-00-740-3884
NSN 5945-01-423-1009
NSN 5910-01-329-1725
NSN 5905-00-539-0139
NSN 5996-00-870-5440
NSN 5950-00-892-8301
NSN 5855-00-548-4742
NSN 6135-01-310-9866
NSN 6220-00-280-2880
NSN 5925-01-512-9934
NSN 6220-00-848-0470
NSN 6150-01-355-6405