Model: MIL-R-21248

Retaining Ring

Properties:

Cross Sectional Shape
Rectangular
Inside Diameter
Between 0.381 inches and 0.389 inches
Casehardening Indicator
Not casehardened
Major Thickness
Between 0.040 inches and 0.044 inches
Ring Style
E
Usage Design
External
Material Hardness Rating
Between 47.0 rockwell c and 52.0 rockwell c
Material
Steel, federal standard 66, aisi/sae 1060 or steel, fed standard 66 aisi/sae 1070 or 1078 or 1080 or 1084 or 1090
Material
Steel comp 1060 or steel, fed standard 66 aisi/sae 1070 or 1078 or 1080 or 1084 or 1090
Material Specification
Fed standard 66 federal standard 1st material response or aisi 1060 assn standard single material response or sae 1060 assn standard single material response
Surface Treatment
Cadmium and chromate
Surface Treatment Specification
Qq-p-416, type 2, class 3 federal specification single treatment response
Surface Treatment
Cadmium, qq-p-416, type 2, class 3
NSN
5325-01-116-9577
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 5325-01-116-9577

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
07623
FIIG:
T252-G
Concept No.:
App. Key:
GA
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
SX
CRITL:
X

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:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
095190
UFC:
49790
LTL:
70.0
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
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

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