Model: E21127-1

Retaining Ring

Properties:

Cross Sectional Shape
Beveled one inside corner
Inside Diameter
Between 1.617 inches and 1.650 inches
Casehardening Indicator
Not casehardened
Minor Thickness
Between 0.047 inches and 0.049 inches
Major Thickness
Between 0.059 inches and 0.065 inches
Ring Style
External
End Application
W/s: helicopter, advance attack, ah-1w; helicopter, mh-53e; ticonderoga class cg (47); helicopter, search and rescue, hh-60h; oliver perry class ffg; helicopter, carrier based asw, sh-60f; spruance class dd (963); shipboard material handling equipment (mhe); helicopter, uscg search and rescue, hh-60j
Usage Design
External
Material Hardness Rating
Between 47.0 rockwell c and 52.0 rockwell c
Material
Steel, fed standard 66, 1066 to 1090
Material
Steel, fed standard 66, 1066 to 1090
Surface Treatment
Cadmium and chromate
Surface Treatment
Cadmium and chromate
NSN
5325-00-252-6845
Part Number
E21127-1
Description
Ring,retaining
CAGE
38151

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 E21127-1 NSN 5325-00-252-6845

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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