National Item Identification Number

00-409-8045
004098045
6650-00-409-8045
6650004098045

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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02734

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LOCKHEED MARTIN CORPORATION
DBA LOCKHEED MARTIN
3 EXECUTIVE CAMPUS-6TH FLOOR
CHERRY HILL
NJ
08002
856-792-9830

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18876

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Reference Numbers (Part Numbers)

10682558
10682558

Required Categories

STYLE DESIGNATOR
HOLE DIAMETER
OVERALL LENGTH
THREAD SIZE
HOLE CHAMFER ANGLE

Required Description

F3 RECESSED
0.410 INCHES NOMINAL
0.250 INCHES NOMINAL
0.625 IN.-40 UN
30.0;