5306-00-559-9290 BOLT,SQUARE NECK Index 5310-00-559-9304 WASHER,KEY

National Stock Number:
5310-00-559-9296

Federal Supply Class:
5310

National Item Identification Number:
005599296

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:
AN15040981352AIR FORCE-NAVY AERONAUTICAL SPECIFICATIONS PROMULGATED BY AERONAUTICAL STANDARDS GROUP


Techincal Specification:
BEARING SURFACE FINISH60.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
COUNTERSINK ANGLE88.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM NUT
HARDNESS RATING19.0 ROCKWELL C MINIMUM AND 26.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS6325 ASSN STD 2ND MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 8735 OR STEEL COMP 8740 OVERALL
NOMINAL THREAD SIZE0.312 INCHES
NUT HEIGHT0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.493 INCHES MINIMUM AND 0.502 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH24
THREAD SERIESUNF


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