655-045

Optical Element Retaining Ring

NSN 1240-00-159-0537

DEMIL

Shelf Life

UOM

NIIN

Demil:

Shelf Life:

N/A

UOM:

1 EA

NIIN:

001590537

Product Technical Spec.

Groove Diameter:

2.251 inches

Overall Length:

0.656 inches

Outside Diameter:

2.500 inches

Aperture Diameter:

2.016 inches

Inner Groove Width:

0.0235 inches

End Application:

Gun sight mk29

Internal Flange Thickness:

0.125 inches

Groove Location:

Inside face of flange

Knurled Periphery:

Not provided

Material:

Steel, corrosion resisting

Material:

Stainless steel

NSN:

1240-00-159-0537

Item Name:

Ring,eyepiece Focus

Cage Code:

10001

Cross Referenced Parts

Part Number

Cage

RNCC

RNVC

RNAAC

Status

MSDS

SADC

Part Number:

231650

Cage Code:

56232

RNCC:

RNVC:

RNAAC:

Status:

MSDS:

SADC:

Part Identification

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

22585

FIIG:

T271-J

Concept No.:

App. Key:

Cond. Code:

Status:

Part Materials

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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Pricing & Availability

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Definition Definition of approved item name (AIN): "Eyepiece Focus 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.