National Item Identification Number

00-126-8990
001268990
6650-00-126-8990
6650001268990

National Stock Number

Item Name

RING,RETAINING,OPTICAL ELEMENT

Federal Supply Class

6650

Description

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.

Commercial and Government Entity Code (Supplier Data)

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3B150

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49956

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Reference Numbers (Part Numbers)

2575146
2575146
2575146
2575146

Required Categories

MATERIAL
SURFACE TREATMENT
OVERALL LENGTH
OUTSIDE DIAMETER
III FSC APPLICATI

Required Description

STEEL, CORROSION RESISTING
PASSIVATED
0.643 INCHES NOMINAL
3.147 INCHES NOMIN