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Part Number

Part Number:
NSN:
NIIN:
Item Name:
NUT , SELF-LOCKING , EXTENDED WASHER

Definition:

A NUT HAVING 12 DRIVE POINTS, 24 SIDES, AND AN INTEGRAL WASHER WHICH EXTENDS BEYOND THE POINTS OR PERIPHERY. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER.

CAGE Information

Code Company
02731 MCDONNELL DOUGLAS HELICOPTER CO INC

Federal Supply Class

Title

NUTS AND WASHERS

Inclusions:

INCLUDES LOCKNUTS; EYE NUTS; PLAIN NUTS; CASTELLATED NUTS; WING NUTS; PLATE NUTS; PUSH ON NUTS; CONCAVE AND CONVEX WASHERS; FLAT WASHERS; KEYED WASHERS; LOCK WASHERS; SHOULDERED WASHERS; SPLIT WASHERS.

Exclusions:

EXCLUDES BEARING THRUST WASHERS (FSC 3120); SHIMS (FSC 5365); RING SPACERS (FSC 5365); PLATE SPACERS (FSC 5365); LOCK RINGS (FSC 5365).

Characteristics (Decoded)

MRC Requirements Statement Clear Text Reply
CMLP THREAD QUANTITY PER INCH 24
AAVX WASHER OUTSIDE DIAMETER 0.606 INCHES MAXIMUM
ACTA NUT STYLE DOUBLE HEXAGON
CQFM HARDNESS RATING 27.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM
AZKQ TEMP RATING 450.0 DEG FAHRENHEIT NOMINAL
ABKW OVERALL HEIGHT 0.411 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
ADEM WASHER THICKNESS 0.095 INCHES MINIMUM
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY1 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
AAJD THREAD CLASS 3B
MATT MATERIAL STEEL OVERALL
ASDB WIDTH ACROSS FLATS 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
CQJX NOMINAL THREAD SIZE 0.312 INCHES
ABAJ LUBRICATION DRY FILM LUBRICANT
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL
BZRR THREAD SERIES UNJF
AAUM LOCKING FEATURE PREVAILING TORQUE ALL METAL DESIGN

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