5306-00-726-0410 BOLT,SHEAR Index 3120-00-726-0413 BUSHING,SLEEVE

National Stock Number:
5310-00-726-0412

Federal Supply Class:
5310

National Item Identification Number:
007260412

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:
AN345C51688044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
COUNTERSINK ANGLE110.0 DEGREES NOMINAL NUT
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD SIZE0.312 INCHES
NUT HEIGHT0.208 INCHES MINIMUM AND 0.225 INCHES MAXIMUM
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.545 INCHES MINIMUM AND 0.565 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNF
THREAD QUANTITY PER INCH24


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