Model: MIL-R-21248

Retaining Ring

Special Features:

Zinc coating; for use on a 1.000 inch diameter shaft

Properties:

Cross Sectional Shape

Rectangular

Inside Diameter

Between 1.426 inches and 1.459 inches

Casehardening Indicator

Not casehardened

Major Thickness

Between 0.060 inches and 0.066 inches

End Style

90 degree parallel

Ring Style

External

Usage Design

External

Material Hardness Rating

Between 46.0 rockwell c and 51.0 rockwell c

Part Name Assigned By Controlling Agency

Ring, retaining, external, basic

Material

Steel, astm a682, grade 1064

Material

Steel comp 1064

Material Specification

Astm a682, grade 1064 assn standard single material response

Surface Treatment

Zinc and chromate and zinc

Surface Treatment

Zinc, astm b633, type 2 and zinc coated

NSN

5325-01-494-0000

Part Number

MIL-R-21248

Description

Ring,retaining

CAGE

81349

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 MIL-R-21248 NSN 5325-01-494-0000

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:

0.2000lbs

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:

095190

UFC:

49790

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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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