Model: MR-212

Retaining Ring

Properties:

Cross Sectional Shape

Beveled one outside corner

Inside Diameter

1.896 inches

Casehardening Indicator

Not casehardened

Outside Diameter

2.282 inches

Minor Thickness

0.059 inches

Major Thickness

0.087 inches

Ring Style

Spiral

End Application

M109 howitzer family

Usage Design

Internal

Part Name Assigned By Controlling Agency

Ring, retaining, internal

Material

Steel, sae 1070 or steel, sae 1090

Material

Steel comp 1070 or steel comp 1090

Material Specification

Sae 1090 assn standard 2nd material response

Surface Treatment

Oil

Surface Treatment

Oil dip

Specification Data

96906-dod-std-100 government standard

NSN

5325-00-405-2022

Part Number

MR-212

Description

Ring,retaining

CAGE

80756

A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see push on nut. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also clip, retaining and pin, lock. Excludes ring, connecting, round.

Part MR-212 NSN 5325-00-405-2022

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

07623

FIIG:

T252-G

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:

0.1000lbs

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

146150

UFC:

72990

LTL:

85.0

LCL:

WCC:

682

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 9606100000
SITC: 89983
End Use: Finished textile supplies
NAICS: 339993
USDA: 1

Freight Class: Press-fasteners, snap-fasteners & press-studs & parts therefor