National Item Identification Number

00-499-2802
004992802
6650-00-499-2802
6650004992802

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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34228

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KOLLMORGEN CORPORATION
DBA KOLLMORGEN ELECTRO OPTICAL DIV
347 KING ST
NORTHAMPTON
MA
01060
413-586-2330

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34228

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KOLLMORGEN CORPORATION
DBA KOLLMORGEN ELECTRO OPTICAL DIV
347 KING ST
NORTHAMPTON
MA
01060
413-586-2330

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34228

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KOLLMORGEN CORPORATION
DBA KOLLMORGEN ELECTRO OPTICAL DIV
347 KING ST
NORTHAMPTON
MA
01060
413-586-2330

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Reference Numbers (Part Numbers)

C685-17
C687-17
012522

Required Categories

MATERIAL
SURFACE TREATMENT
THREAD LOCATION
THREAD SIZE
SCREW THREAD SERIES D

Required Description

ALUMINUM ALLOY, QQ-A-225/8
ANODIZED BLACK
INTERNAL
3.250 IN.-32
UNS
3B
0.4