Model: MIL-R-21248B

Retaining Ring

Properties:

Cross Sectional Shape
Rectangular
Inside Diameter
Between 0.915 inches and 0.930 inches
Casehardening Indicator
Not casehardened
Major Thickness
Between 0.040 inches and 0.044 inches
Ring Style
External bowed
Usage Design
External
Material Hardness Rating
Between 66.0 rockwell superficial 30-n and 71.0 rockwell superficial 30-n
End Play Takeup
0.020 inches
Material
Steel, fed standard 66, composition 1060 through 1090
Material
Steel, fed standard 66, composition 1060 through 1090
Surface Treatment
Cadmium and chromate
Surface Treatment
Cadmium, qq-p-416, type 2, class 3
NSN
5325-00-256-2863
Part Number
MIL-R-21248B
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-21248B NSN 5325-00-256-2863

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:
CRITL:
X

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:
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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