5306-00-021-3548 BOLT,MACHINE Index 9545-00-021-3551 WIRE,NONELECTRICAL

National Stock Number:
5310-00-021-3549

Federal Supply Class:
5310

National Item Identification Number:
000213549

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:
21354956442DIAMOND REO TRUCK CO
737820219207U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
93029712204DAIMLER CHRYSLER
FFB571TYPEA81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY HEIGHT RQMT
NUT HEIGHT0.398 INCHES MINIMUM AND 0.415 INCHES MAXIMUM
NUT STYLEHEXAGON
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.375 INCHES
NONDEFINITIVE SPEC/STD DATAA TYPE
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH16
WIDTH ACROSS FLATS0.5510 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM
SURFACE TREATMENTLEAD OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B


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