Crystal controlled oscillator
An item that can generate a fundamental frequency with a high degree of accuracy. Harmonics of this fundamental are then used as a reference point for checking throughout the radio spectrum. The standard may be stable crystal oscillator, noncrystal oscillator, tuning fork, atomic beam, molecular beam, gas cell, quantum mechanical resonator, or the like.
Classification: Parts and accessories of articles of schedule b subheading 9030.39
NSN 6240-00-493-3693
NSN 6240-01-231-4184
NSN 2925-01-492-9863
NSN 5835-00-170-5238
NSN 5925-00-145-5512
NSN 2925-01-020-5099
NSN 6145-00-806-2812
NSN 6130-00-880-3980
NSN 5915-01-413-7792
NSN 5920-00-789-8247
NSN 6130-01-112-4246
NSN 2925-00-555-8836