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

Retaining Ring

Model / MPN: MIL-R-21248 TY I CL 2 | NSN: 5325-00-282-5303
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
5325-00-282-5303
Sold in multiples of
DEMIL
NO
Cross Sectional Shape
Rectangular
Inside Diameter
Between 0.211 inches and 0.217 inches
Casehardening Indicator
Not casehardened
Major Thickness
Between 0.013 inches and 0.017 inches
Ring Style
External
Usage Design
External
Material Hardness Rating
Between 77.0 rockwell superficial 15-n and 82.0 rockwell superficial 15-n
Material
Beryllium copper, qq-c-533
Material
Copper alloy 170 or copper alloy 172
Material Specification
Qq-c-533 federal specification single material response

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MIL-R-21248 TY I CL 2 Cross Reference
  • MS16624-23