5305-00-012-5652 SCREW,MACHINE Index 1560-00-012-5659 FITTING,SUPPORT

National Stock Number:
5310-00-012-5653

Federal Supply Class:
5310

National Item Identification Number:
000125653

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:
FFB571TYPEA81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY OVER-ALL HEIGHT
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.500 INCHES
NONDEFINITIVE SPEC/STD DATAA TYPE
NUT STYLEHEXAGON
NUT HEIGHT0.562 INCHES NOMINAL
WIDTH ACROSS FLATS0.750 INCHES NOMINAL
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH20
THREAD SERIESUNF


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