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Part Number

Part Number:
NSN:
NIIN:
Item Name:
NUT , SELF-LOCKING , CASTELLATED , HEX

Definition:

A NUT HAVING 6 FLAT SIDES, FLAT ON THE BOTTOM AND HAVING A SLOTTED CYLINDRICAL OR DOME SHAPED UPPER PORTION. AN INTEGRAL FEATURE IS INCORPORATED FOR LOCKING ON THE THREADS OF A MATING MEMBER. THE SLOTS WHEN USED IN CONJUNCTION WITH A SOLID OR SPLIT (COTTER) PIN, ACT AS AN EXTRA "FAIL SAFE" FEATURE IN CRITICAL APPLICATIONS. EXCLUDES NUT (1), SELF-LOCKING, SLOTTED, HEXAGON.

CAGE Information

Code Company
73030 HAMILTON SUNDSTRAND CORPORATION

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
CQJX NOMINAL THREAD SIZE 0.250 INCHES
BZRR THREAD SERIES UNF
AZKQ TEMP RATING 450.0 DEG FAHRENHEIT NOMINAL
CQFM HARDNESS RATING NOT RATED
CMLP THREAD QUANTITY PER INCH 28
ADEA NUT HEIGHT 0.271 INCHES MINIMUM AND 0.283 INCHES MAXIMUM
AAJF THREAD DIRECTION RIGHT-HAND
AAJD THREAD CLASS 3B
MATT MATERIAL STEEL OVERALL
CRTM BEARING SURFACE TYPE CHAMFERED
ASDB WIDTH ACROSS FLATS 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM
ACTA NUT STYLE CASTELLATED, HEXAGON
CRSQ COUNTERSINK ANGLE ANY ACCEPTABLE NUT
SFTT SURFACE TREATMENT NICKEL OVERALL
AAUM LOCKING FEATURE PREVAILING TORQUE ALL METAL DESIGN

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