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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
80756 SPIROLOX INC.

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

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