Part Number
Part Number:
NSN:
NIIN:
Item Name:
RING , RETAINING
Definition:
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.
CAGE Information
| Code | Company |
|---|---|
| 51814 | SMALLEY STEEL RING CO. |
Federal Supply Class
Title
FASTENING DEVICES
Inclusions:
INCLUDES EYELETS; GROMMETS; AIRCRAFT COWLING FASTENERS; TEXTILE FASTENERS; RETAINING RINGS; THREADED INSERTS.
Exclusions:
Characteristics (Decoded)
| MRC | Requirements Statement | Clear Text Reply |
|---|---|---|
| FEAT | SPECIAL FEATURES | DOUBLE TURN AND LOCK |
| AWQD | STRENGTH RATING | 221000.0 POUNDS PER SQUARE INCH MINIMUM TENSILE |
| ACXD | RING STYLE | SPIRAL |
| AARX | INSIDE DIAMETER | 3.985 INCHES MINIMUM AND 3.997 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 4.409 INCHES MINIMUM AND 4.441 INCHES MAXIMUM |
| ALBY | USAGE DESIGN | INTERNAL |
| AASG | CASEHARDENING INDICATOR | NOT CASEHARDENED |
| ALME | MATERIAL HARDNESS RATING | 72.8 ROCKWELL A MINIMUM AND 77.5 ROCKWELL A MAXIMUM |
| MATL | MATERIAL | STEEL, AMS 5120 |
| ABMC | MAJOR THICKNESS | 0.058 INCHES MINIMUM AND 0.064 INCHES MAXIMUM |