Product Details | RETAINING RING

5325-01-312-1219 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 Alternates: M274264183A, M27426-4183A, MILR27426, MIL-R-27426, RRN775, RRN-775, WHM775, WHM-775, 663573, 5325-01-312-1219, 01-312-1219, 5325013121219, 013121219

Hardware and Abrasives | Fastening Devices

Supply Group (FSG) NSN Assign. NIIN
53 10 DEC 1989 01-312-1219

Drawings & Photos | NSN 5325-01-312-1219


Cross Reference | NSN 5325-01-312-1219

Part Number Cage Code Manufacturer
663573 11083 CATERPILLAR INC. DBA CATERPILLAR
663573 53930 WEST SALEM MACHINERY COMPANY DBA GERLINGER CARRIER
M27426-4183A 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MIL-R-27426 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
RRN-775 80756 SPIROLOX, INC.
WHM-775 51814 SMALLEY STEEL RING CO.

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Technical Data | NSN 5325-01-312-1219

Characteristic Specifications
MATERIAL STEEL, FED STD 66, COMP 1070 OR STEEL, FED STD 66, COMP 1072 OR STEEL, FED STD 66, COMP 1074 OR STEEL, FED STD 66, COMP 1075 OR STEEL, FED STD 66, COMP 1078 OR STEEL, FED STD 66, COMP 1080 OR STEEL, FED STD 66, COMP 1084 OR STEEL, FED STD 66, COMP 1085 OR STEEL, FED STD 66, COMP 1086 OR STEEL, FED STD 66, COMP 1090
STRENGTH RATING 211000.0 POUNDS PER SQUARE INCH MINIMUM TENSILE
MATERIAL HARDNESS RATING 40.0 ROCKWELL C MINIMUM AND 51.5 ROCKWELL C MAXIMUM
CASEHARDENING INDICATOR NOT CASEHARDENED
RING STYLE A55 SPECIAL FLAT
INSIDE DIAMETER 7.321 INCHES MINIMUM AND 7.391 INCHES MAXIMUM
OUTSIDE DIAMETER 8.157 INCHES MINIMUM AND 8.227 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE D12 DOUBLE OVAL
MAJOR THICKNESS 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM
USAGE DESIGN INTERNAL
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MIL-R-27426
MANUFACTURERS CODE 81349
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE M27426-4183A

Restrictions/Controls & Freight Information | NSN 5325-01-312-1219

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
No Freight Information