NSN 5325-00-531-3971
Part Details | RETAINING RING
5325-00-531-3971 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.
Alternate Parts: 9M188225, 9M188-225, RRT225C, RRT225CDM9, 5325-00-531-3971, 00-531-3971, 5325005313971, 005313971
Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
---|---|---|---|
53 | SEP 11, 1974 | 00-531-3971 | 07623 ( RING, RETAINING ) |
REFERENCE DRAWINGS & PICTURES
ROUND

SPECIAL FLAT

Cross Reference | NSN 5325-00-531-3971
Part Number | Cage Code | Manufacturer |
---|---|---|
9M188-225 | 76301 | BOEING COMPANY, THEDBA BOEING |
RRT225C | 00000 | ORDNANCE CORPS |
RRT225CDM9 | 80756 | SPIROLOX, INC. |
Technical Data | NSN 5325-00-531-3971
Characteristic | Specifications |
---|---|
STRENGTH RATING | 221000.0 POUNDS PER SQUARE INCH MINIMUM TENSILE |
CASEHARDENING INDICATOR | NOT CASEHARDENED |
RING STYLE | SPECIAL FLAT |
CROSS-SECTIONAL SHAPE STYLE | 2 ROUND |
USAGE DESIGN | INTERNAL |
MATERIAL HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 51.5 ROCKWELL C MAXIMUM |
SURFACE TREATMENT | CADMIUM AND CHROMATE |
INSIDE DIAMETER | 2.100 INCHES MINIMUM AND 2.135 INCHES MAXIMUM |
OUTSIDE DIAMETER | 2.386 INCHES MINIMUM AND 2.411 INCHES MAXIMUM |
MAJOR THICKNESS | 0.077 INCHES MINIMUM AND 0.083 INCHES MAXIMUM |