5305-00-042-6374 SETSCREW Index 5305-00-042-6379 SCREW,MACHINE

National Stock Number:
5310-00-042-6376

Federal Supply Class:
5310

National Item Identification Number:
000426376

Description:
NUT,PLAIN,HEXAGON

Detail:
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.)


Manufacturer Information:
1B4330D9182ZF INDUSTRIEANTRIEBE WITTEN GMBH
42637621450ARMY WEAPONS COMMAND ATTN AMSWE-REE-S
42637624617GENERAL MOTORS CORP
JM5631159INTERNATIONAL STEEL CO
4263767X677GENERAL MOTORS LLC
FFN83681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
THREAD SERIESUNC
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
HARDNESS RATING68.0 ROCKWELL B MINIMUM AND
32.0 ROCKWELL C MAXIMUM
NUT STYLEHEXAGON
NUT HEIGHT0.196 INCHES MINIMUM AND
0.210 INCHES MAXIMUM
WIDTH ACROSS FLATS0.428 INCHES MINIMUM AND
0.438 INCHES MAXIMUM
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED
NONDEFINITIVE SPEC/STD DATA2 TYPE AND
4 STYLE AND
A GRADE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFFN836


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