5305-00-012-0612 SCREW,MACHINE Index 5310-00-012-0614 NUT,PLAIN,HEXAGON

National Stock Number:
5310-00-012-0613

Federal Supply Class:
5310

National Item Identification Number:
000120613

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:
12061312204DAIMLER CHRYSLER
12061318876U S ARMY AVIATION AND MISSILE COMMAND
21061324617GENERAL MOTORS CORP
12061356442DIAMOND REO TRUCK CO
2106137X677GENERAL MOTORS LLC
251293H0001DAF TRUCKS N.V.
FFB571TYPEA81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
THREAD SERIESUNF
NOMINAL THREAD SIZE0.250 INCHES
THREAD QUANTITY PER INCH28
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OR
ZINC OVERALL
NUT STYLEHEXAGON
NUT HEIGHT0.156 INCHES NOMINAL
WIDTH ACROSS FLATS0.438 INCHES NOMINAL
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED
NONDEFINITIVE SPEC/STD DATAA TYPE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFFB571TYPEA


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