5310-00-268-6038 NUT,PLAIN,HEXAGON Index 5310-00-268-6040 NUT,PLAIN,HEXAGON

National Stock Number:
5310-00-268-6039

Federal Supply Class:
5310

National Item Identification Number:
002686039

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:
AN12150881352AIR FORCE-NAVY AERONAUTICAL SPECIFICATIONS PROMULGATED BY AERONAUTICAL STANDARDS GROUP


Techincal Specification:
BEARING SURFACE FINISH63.0 MICROINCHES
BEARING SURFACE TYPEWASHER FACED
COUNTERSINK ANGLE85.0 DEGREES MINIMUM AND 95.0 DEGREES MAXIMUM NUT
HARDNESS RATING19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6322 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 8740 OVERALL
NOMINAL THREAD SIZE0.625 INCHES
NUT HEIGHT0.537 INCHES MINIMUM AND 0.557 INCHES MAXIMUM
NUT STYLEHEXAGON
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH18
THREAD SERIESUNF
WIDTH ACROSS FLATS0.928 INCHES MINIMUM AND 0.940 INCHES MAXIMUM


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