5305-01-294-5272 SCREW,MACHINE Index 5310-01-294-5274 NUT,PLAIN,HEXAGON

National Stock Number:
5310-01-294-5273

Federal Supply Class:
5310

National Item Identification Number:
012945273

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:
MIL-DTL-122281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
MIL-S-122281349MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIESUNC
NOMINAL THREAD SIZE0.375 INCHES
THREAD QUANTITY PER INCH16
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J995,GRADE 5 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTZINC AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633,TYPE 2,FE/ZN 13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING32.0 ROCKWELL C MAXIMUM
NUT STYLEHEXAGON
NUT HEIGHT0.328 INCHES NOMINAL
WIDTH ACROSS FLATS0.562 INCHES NOMINAL
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED
SPECIAL FEATURESMERCURY FREE
NONDEFINITIVE SPEC/STD DATA1 TYPE AND
5 GRADE
DEPARTURE FROM CITED DOCUMENTAS MODIFIED BY MERCURY FREE CLAUSE
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMIL-DTL-1222


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