National Item Identification Number

01-406-5322
014065322
6650-01-406-5322
6650014065322

National Stock Number

Item Name

RETAINER,OPTICAL ELEMENT

Federal Supply Class

6650

Description

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.

Commercial and Government Entity Code (Supplier Data)

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03956

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NORTHROP GRUMMAN SYSTEMS CORPORATION
DBA SPERRY MARINE
1070 SEMINOLE TRL
CHARLOTTESVILLE
VA
22901
434-974-2366

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Reference Numbers (Part Numbers)

1819955

Required Categories

MATERIAL
III END ITEM IDENTIFICATION

Required Description

ALUMINUM
2040LLHB36940