Model: 654745

Optical Element Retaining Ring

Properties:

Thread Class

Thread Direction

Right-hand

Groove Diameter

2.218 inches

Thread Length

0.171 inches

Overall Length

0.297 inches

Outside Diameter

2.562 inches

Thread Size

2.437-32

Aperture Diameter

2.125 inches

Inner Groove Width

0.0930 inches

End Application

Gun sight mk29

Screw Thread Series Designator

Uns

Thread Location

Internal

Internal Flange Thickness

0.064 inches

Groove Location

Inside face of flange

Knurled Periphery

Not provided

Material

Brass, ww-t-791, grade 2, type a

Material

Copper alloy 330

Surface Treatment

Any acceptable

NSN

1240-00-177-0659

Part Number

654745

Description

Ring,retaining,optical Element

CAGE

10001

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.

Part 654745 NSN 1240-00-177-0659

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22585

FIIG:

T271-J

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

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Schedule B and Export

Schedule B: 9803200000
SITC: 93100
End Use: Military apparel and footwear
NAICS: 990000
USDA: 1

Freight Class: Military equipments not identified by kind