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Part Number

Part Number:
NSN:
NIIN:
Item Name:
NUT , PLAIN , HEXAGON

Definition:

A NUT, FLAT ON TOP AND BOTTOM HAVING 6 FLAT SIDES. FOR ITEMS WHICH HAVE INTERNAL TAPERED OR STRAIGHT (PARALLEL) PIPE THREADS, SPECIFIC ELECTRICAL CONDUIT SIZE DESIGNATION, AND WHICH WHEN INSTALLED, PROVIDE A METHOD OF TIGHTENING TO LOCK THE CONNECTION, SEE LOCKNUT, ELECTRICAL CONDUIT. SEE ALSO LOCKNUT, TUBE FITTING. FOR ITEMS HAVING A THICKNESS (OR HEIGHT) EXCEEDING TWO TIMES THE WIDTH ACROSS THE FLATS, USE POST, ELECTRICAL-MECHANICAL EQUIPMENT. (WHEN HEIGHT OR THICKNESS AND/OR WIDTH ACROSS THE FLATS IS DESIGNATED AS A TOLERANCE DIMENSION, THE MAXIMUM DIMENSION WILL BE USED TO DETERMINE COMPLIANCE.)

CAGE Information

Code Company
97403 CECOM LR CENTER

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
ADEA NUT HEIGHT 0.178 INCHES MINIMUM AND 0.193 INCHES MAXIMUM
CQJX NOMINAL THREAD SIZE 0.250 INCHES
CQFM HARDNESS RATING NOT RATED
AAJF THREAD DIRECTION RIGHT-HAND
AZKQ TEMP RATING NOT RATED
MATT MATERIAL STEEL OVERALL
CRTM BEARING SURFACE TYPE CHAMFERED
ACTA NUT STYLE HEXAGON
BZRR THREAD SERIES UNC
SFTT SURFACE TREATMENT CADMIUM OVERALL AND CHROMATE OVERALL
STDC SURFACE TREATMENT DOCUMENT AND CLASSIFICATION QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
ZZZT NONDEFINITIVE SPEC/STD DATA 2 TYPE AND 13 STYLE
AAJD THREAD CLASS 2B
CMLP THREAD QUANTITY PER INCH 20
ASDB WIDTH ACROSS FLATS 0.423 INCHES MINIMUM AND 0.437 INCHES MAXIMUM

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