Model: M2742630151B

Retaining Ring

Properties:

Cross Sectional Shape
Double oval
Inside Diameter
2.062 inches
Casehardening Indicator
Not casehardened
Outside Diameter
2.154 inches
Major Thickness
Between 0.049 inches and 0.051 inches
Ring Style
Spiral
End Application
Helicopter, eh101 merlin
Usage Design
Internal
Material Hardness Rating
Between 40.0 rockwell c and 51.5 rockwell c
Material
Steel, carbon
Material
Steel
Surface Treatment
Cadmium and chromate
Surface Treatment
Cadmium, qq-p-416, type 2, class 2
Test Data Document
81349--27426-3151b specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Specification Data
81349-mil-r-27426 government specification
NSN
5325-01-454-3722
Part Number
M2742630151B
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 M2742630151B NSN 5325-01-454-3722

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:
A
ESD:
A
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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