National Item Identification Number

01-177-4398
011774398
6650-01-177-4398
6650011774398

National Stock Number

Item Name

SPACER,OPTICAL ELEMENT

Federal Supply Class

6650

Description

A tubular shaped item designed to maintain a predetermined distance between optical elements, such as lenses, reticles, and the like. The bore may be straight, tapered or counterbored, and may have annular serrations to converge or diverge light rays. The surfaces, which mate with the optics, are usually chamfered, concave, and/or have a specified finish designation in the range of 1 to 125 microinches arithmetical average (AA). See also SPACER, SLEEVE and CELL, OPTICAL ELEMENT.

Commercial and Government Entity Code (Supplier Data)

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18876

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26772

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Reference Numbers (Part Numbers)

13144028
13144028

Required Categories

MATERIAL
THE MANUFACTURERS DATA
MANUFACTURERS CODE
DESIGN CONTROL REFERENCE

Required Description

STEEL CORROSION RESISTING
18876
13144028