031539

Optical element retaining ring

031539 Description

F-16C/D acft end item identification, aluminum alloy, QQ-A-200/3 material, aluminum alloy 2024 material, anodized, MIL-A-8625, type 2, class 2 surface treated.

Properties of 031539

End Application:
F-16c/d acft
Material:
Aluminum alloy, qq-a-200/3
Material:
Aluminum alloy 2024
Surface Treatment:
Anodized, mil-a-8625, type 2, class 2
NSN:
1240-01-195-8672
Description:
Ring,retaining,optical Element
Cage Code:

Definition Optical Element Retaining Ring

A cylindrical item having an internally flanged diameter designed to retain a lens or window in the objective end, or a diopter scale at the viewing end of an optical instrument. It may have one or more of the following characteristics: internal thread or machined for a press fit, method of securing, and/or knurled periphery. For externally threaded items, see retainer, optical element. Excludes cell, optical element; nut, plain knurled; nut, plain round; and ring, retaining.

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Last modified 05/01/2024