5306-00-543-5040 BOLT,INTERNAL WRENCHING Index 5306-00-543-5042 BOLT,MACHINE

National Stock Number:
5310-00-543-5041

Federal Supply Class:
5310

National Item Identification Number:
005435041

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:
5310PL01452409009HINSPEKTORAT WSPARCIA SIL ZBROJNYCH
FF-N-83681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
NAS509L880205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
THREAD SERIESUNJF
NOMINAL THREAD SIZE0.500 INCHES
THREAD QUANTITY PER INCH20
THREAD CLASS3B
THREAD DIRECTIONLEFT-HAND
MATERIALSTEEL COMP 4130 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758,COND C4 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND
38.0 ROCKWELL C MAXIMUM
NUT STYLEHEXAGON
NUT HEIGHT0.313 INCHES NOMINAL
WIDTH ACROSS FLATS0.740 INCHES MINIMUM AND
0.752 INCHES MAXIMUM
HOLE CONFIGURATION STYLECONFIGURATION B
HOLE TYPE AND QUANTITY3 DRILLED
DRILLED HOLE DIAMETER0.045 INCHES MINIMUM AND
0.050 INCHES MAXIMUM
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED
COUNTERSINK ANGLE110.0 DEGREES NOMINAL BOTH ENDS
BEARING SURFACE FINISH125.0 MICROINCHES
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81348
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEFF-N-836


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