Model: 3101-78-ST

Retaining Ring

Properties:

Cross Sectional Shape
Rectangular
Inside Diameter
0.722 inches
Casehardening Indicator
Not casehardened
Major Thickness
0.042 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 federal standard no. 66, aisi c1066 through c1090 or sae 1070 through 1090
Material
Steel, fed federal standard no. 66, aisi c1066 through c1090 or sae 1070 through 1090
Surface Treatment
Nickel
Surface Treatment
Nickel plated finish
NSN
5325-00-912-5818
Part Number
3101-78-ST
Description
Ring,retaining
CAGE
97464

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 3101-78-ST NSN 5325-00-912-5818

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

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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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