Option 00a adds male to male and female to female adapter
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 6150-01-031-6740
NSN 5855-01-517-7325
NSN 6610-01-269-5437
NSN 5925-01-152-7996
NSN 4140-01-351-3892
NSN 5965-01-365-5813
NSN 6145-00-545-7215
NSN 5965-00-568-5802
NSN 5996-01-140-2162
NSN 5999-01-198-4683
NSN 5930-00-084-7579
NSN 5960-00-067-5784