5306-01-388-2346 BOLT,SHOULDER Index 5310-01-388-2348 WASHER,FLAT

National Stock Number:
5310-01-388-2347

Federal Supply Class:
5310

National Item Identification Number:
013882347

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:
MS35691-12196906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE2.250 INCHES
NUT STYLEHEXAGON
NUT HEIGHT1.155 INCHES MINIMUM AND 1.251 INCHES MAXIMUM
WIDTH ACROSS FLATS3.262 INCHES MINIMUM AND 3.375 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH4-1/2
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)


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