5306-01-224-3734 BOLT,SQUARE NECK Index 5310-01-224-3736 WASHER,FLAT

National Stock Number:
5310-01-224-3735

Federal Supply Class:
5310

National Item Identification Number:
012243735

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:
B18241A12080204AMERICAN NATIONAL STANDARDS INSTITUTE INCORPORATED


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A563 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE12.0 MILLIMETERS
NUT STYLEHEXAGON
NUT HEIGHT10.4 MILLIMETERS MINIMUM AND 10.8 MILLIMETERS MAXIMUM
WIDTH ACROSS FLATS17.7 MILLIMETERS MINIMUM AND 18.0 MILLIMETERS MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESISO M
THREAD PITCH IN MILLIMETERS1.75
THREAD TOLERANCE CLASS4H6H INTERNAL


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