M2742620154B

Ring, Retaining

Part number

M2742620154B

NSN

5325-01-116-9578

NIIN

01-116-9578

Item name

Ring, Retaining

Manufacturer

Military Specifications

CAGE code

81349

FSC

5325

Unit of issue

EA

DEMIL code

A

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Alternate part numbers

• M2742620154B CAGE 81349
• MIL-DTL-27426 CAGE 81349
• RSN-350-CD CAGE 80756

Technical characteristics

Cross-Sectional Shape Style

Double oval

Inside Diameter

3.263 inches minimum and 3.293 inches maximum

Casehardening Indicator

Not casehardened

Outside Diameter

3.797 inches minimum and 3.837 inches maximum

Major Thickness

0.108 inches minimum and 0.114 inches maximum

Ring Style

Spiral

Usage Design

External

Material Hardness Rating

40.0 rockwell C minimum and 51.5 rockwell C maximum

Material

Steel comp 1074 or steel comp 1085

Material Document and Classification

MIL-S-46049 aisi 1074 or aisi 1085 mil spec single material response

Surface Treatment

Cadmium and chromate

Surface Treatment Document and Classification

QQ-P-416, type 2, class 2 fed spec single treatment response

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