Model: 643-6972-003
Frequency StandardSpecial Features:
Nuclear hardness critical item
Properties:
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.
Part 643-6972-003 NSN 6625-01-385-1779
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsFreight Classification
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Schedule B and Export
- Schedule B: 9030908030
- SITC: 87479
- End Use: Measuring, testing, control instruments
- NAICS: 334515
- USDA: 1
Freight Class: Parts and accessories of articles of schedule b subheading 9030.39
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