Model: 3353AS257-1
Optical Element RetainerProperties:
A cylindrical, externally threaded item having a centrally located hole specifically designed to retain by means of either a raised box (shoulder), or counterbore, countersink, or a similar shaped recess, an optical element such as a lens, reticle, cell, and the like, in optical assemblies. It must have drilled holes or slots to facilitate assembly and disassembly. For items which house the optical element(s), and form the internal or central portions of an optical system, see cell, optical element. Excludes ring, externally threaded.
Part 3353AS257-1 NSN 6650-01-421-4004
Material Classification
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicatorsFreight Classification
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Schedule B and Export
- Schedule B: 9018500000
- SITC: 87225
- End Use: Medicinal equipment
- NAICS: 339115
- USDA: 1
Freight Class: Other ophthalmic instruments and appliances and parts and accessories
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