5305-00-685-3171 SCREW,MACHINE Index 5305-00-685-3179 SCREW,MACHINE

National Stock Number:
5310-00-685-3173

Federal Supply Class:
5310

National Item Identification Number:
006853173

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.)


Techincal Specification:
WIDTH ACROSS FLATS0.788 INCHES MINIMUM AND 0.812 INCHES MAXIMUM
THREAD SERIESUNC
NUT HEIGHT0.277 INCHES MINIMUM AND 0.317 INCHES MAXIMUM
NUT STYLEHEXAGON
THREAD CLASS2B
NOMINAL THREAD SIZE0.500 INCHES
MATERIALCOPPER ALLOY OVERALL
BEARING SURFACE TYPECHAMFERED
THREAD QUANTITY PER INCH13
THREAD DIRECTIONRIGHT-HAND


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