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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
79136 TRUARC COMPANY LLC DBA WALDES TRUARC

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
ALBY USAGE DESIGN EXTERNAL
ALBY USAGE DESIGN EXTERNAL
AARX INSIDE DIAMETER 0.221 INCHES MINIMUM AND 0.227 INCHES MAXIMUM
SURF SURFACE TREATMENT PASSIVATED, QQ-P-35
AAGR CROSS-SECTIONAL SHAPE STYLE RECTANGULAR
ACXD RING STYLE EXTERNAL
AWQD STRENGTH RATING NOT RATED
ALME MATERIAL HARDNESS RATING 63.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 69.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM
MATL MATERIAL STEEL, AMS 5520
ABMC MAJOR THICKNESS 0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM
AASG CASEHARDENING INDICATOR NOT CASEHARDENED

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