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Retaining Ring

Model / MPN: MIL-DTL-27426 | NSN: 5325-01-315-7563
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
5325-01-315-7563
Sold in multiples of
1 EA
DEMIL
NO
Cross Sectional Shape
Double oval
Inside Diameter
Between 0.454 inches and 0.467 inches
Casehardening Indicator
Not casehardened
Outside Diameter
Between 0.544 inches and 0.557 inches
Major Thickness
Between 0.023 inches and 0.027 inches
Ring Style
Spiral
Usage Design
External
Material Hardness Rating
Between 71.0 rockwell a and 77.5 rockwell a
Material
Steel, federal standard 66, comp 1070 or steel, federal standard 66, comp 1072 or steel, federal standard 66, comp 1074 or steel, federal standard 66, comp 1075 or steel, federal standard 66, comp 1078 or steel, federal standard 66, comp 1080 or steel, federal standard 66, comp 1084 or steel, federal standard 66, comp 1085 or steel, federal standard 66, comp 1086 or steel, federal standard 66, comp 1090
Material
Steel comp 1070 or steel comp 1572 or steel comp 1074 or steel comp 1075 or steel comp 1078 or steel comp 1080 or steel comp 1070 or steel comp 1085 or steel comp 1086 or steel comp 1090
Material Specification
Fed standard 66, comp 1070 federal standard 1st material response and federal standard 66, comp 1072 federal standard 2nd material response and federal standard 66, comp 1074 federal standard 3rd material response and federal standard 66, comp 1075 federal standard 4th material response and federal standard 66, comp 1078 federal standard 5th material response and federal standard 66, comp 1080 federal standard 6th material response and federal standard 66, comp 1084 federal standard 7th material response and federal standard 66, comp 1085 federal standard 8th material response and federal standard 66, comp 1086 federal standard 9th material response and federal standard 66, comp 1090 federal standard 10th material response
Surface Treatment
Cadmium and chromate
Surface Treatment
Cadmium, qq-p-416, type 2, class 2
Specification Data
81349-mil-r-27426 government specification
Solicitations
Solicitation Description Qty UOM Close Date
SPE5E418T6776 Ring, Retaining 1423 EA 03/07/2018

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MIL-DTL-27426 Cross Reference
  • M2742610100B
  • RS-50-CD
  • WS-50-CD