5306-01-422-8262 BOLT,MACHINE Index 5310-01-422-8264 WASHER,FLAT

National Stock Number:
5310-01-422-8263

Federal Supply Class:
5310

National Item Identification Number:
014228263

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:
1DM2089749CLARK MATERIAL HANDLING COMPANY


Techincal Specification:
THREAD SERIESISO M
NOMINAL THREAD SIZE20.0 MILLIMETERS
THREAD PITCH IN MILLIMETERS2.50
THREAD TOLERANCE CLASS6H INTERNAL
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
HARDNESS RATING30.0 ROCKWELL C MAXIMUM
NUT STYLEHEXAGON
NUT HEIGHT16.90 MILLIMETERS MINIMUM AND
18.00 MILLIMETERS MAXIMUM
WIDTH ACROSS FLATS29.16 MILLIMETERS MINIMUM AND
30.00 MILLIMETERS MAXIMUM
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED


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