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Worldwide distributor of NSN parts and consumables located in the USA.

Retaining Ring

Model / MPN: RR-212-L | NSN: 5325-01-311-6503
ITAR Registered seal

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 par (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.

Product Details
NATO Stock Number
5325-01-311-6503
Sold in multiples of
20 EA
DEMIL
NO
Cross Sectional Shape
Double oval
Inside Diameter
1.961 inches
Casehardening Indicator
Not casehardened
Outside Diameter
Between 2.217 inches and 2.242 inches
Major Thickness
Between 0.046 inches and 0.052 inches
Ring Style
Special flat
Usage Design
Internal
Material Hardness Rating
Between 40.0 rockwell c and 51.5 rockwell c
Material
Steel, mil-s-46049 or steel, mil-s-46049, comp 1065 or steel, mil-s-46049, comp 1074 or steel, mil-s-46049, comp 1085 or steel, mil-s-46049, comp 1095 or steel, aisi 1070 or steel, aisi 1074 or steel, aisi 1078 or steel, aisi 1080 or steel, aisi 1084 or steel, aisi 1085 or steel, aisi 1090 or steel, aisi 1095
Material
Steel comp 1065 or steel comp 1075 or steel comp 1085 or steel comp 1095 or steel comp 1065 or steel comp 1074 or steel comp 1085 or steel comp 1095 or steel comp 1070 or steel comp 1074 or steel comp 1078 or steel comp 1080 or steel comp 1084 or steel comp 1085 or steel comp 1090 or steel comp 1095
Material Specification
Mil-s-46049 military specification 1st material response and mil-s-46049, comp 1065 military specification 2nd material response and mil-s-46049, comp 1074 military specification 3rd material response and mil-s-46049, comp 1085 military specification 4th material response and mil-s-46049, comp 1095 military specification 5th material response and aisi 1070 assn standard 6th material response and aisi 1074 assn standard 7th material response and aisi 1078 assn standard 8th material response and aisi 1080 assn standard 9th material response and aisi 1084 assn standard 10th material response and aisi 1085 assn standard 11th material response and aisi 1090 assn standard 12th material response and aisi 1095 assn standard 13th material response
Surface Treatment
Phosphate zinc
Surface Treatment
Phosphate, mil-p-16232, type z, class 2

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RR-212-L Cross Reference
  • M2742630152C
  • MIL-DTL-27426
  • WH-212-PS