National Stock Number (NSN) Output Data
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.
Reference/Part Number
| Part Number | CAGE | Status | RNCC | RNVC | DAC | RNAAC | MSDS | SADC |
|---|---|---|---|---|---|---|---|---|
| 21555-1 | 02121 | A | 3 | 2 | 2 | SE |
CAGE Information
| Code | Company |
|---|---|
| 02121 | GOODRICH AEROSPACE CANADA LTD GOODRI |
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 |
|---|---|---|
| AAGR | CROSS-SECTIONAL SHAPE STYLE | ROUND |
| MATL | MATERIAL | STEEL,FED,QQ-W-470 |
| ABQK | END STYLE | 90 DEGREE PARALLEL |
| ALBY | USAGE DESIGN | EXTERNAL OR INTERNAL |
| SURF | SURFACE TREATMENT | CADMIUM-PLATED OR ZINC PLATED FINISH W/CHROMATE TREATMENT |
| AWQD | STRENGTH RATING | NOT RATED |
| ACXD | RING STYLE | STRAIGHT GAP |
| ABKV | OUTSIDE DIAMETER | 1.910 INCHES NOMINAL |
| AARX | INSIDE DIAMETER | 1.750 INCHES NOMINAL |
| ALME | MATERIAL HARDNESS RATING | NOT RATED |
| AASG | CASEHARDENING INDICATOR | NOT CASEHARDENED |
| AJRB | MATERIAL DIAMETER | 0.080 NOMINAL INCHES |