5315-00-550-9233 PIN,STRAIGHT,HEADLESS Index 5315-00-550-9238 PIN,STRAIGHT,HEADED

National Stock Number:
5310-00-550-9237

Federal Supply Class:
5310

National Item Identification Number:
005509237

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:
AN15041081352AIR FORCE-NAVY AERONAUTICAL SPECIFICATIONS PROMULGATED BY AERONAUTICAL STANDARDS GROUP


Techincal Specification:
THREAD SERIESUNF
NOMINAL THREAD SIZE0.375 INCHES
THREAD QUANTITY PER INCH24
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 8735 OR
STEEL COMP 8740 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6320 ASSN STD 1ST MATERIAL RESPONSE OR
AMS6325 ASSN STD 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAMS 2400 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING19.0 ROCKWELL C MINIMUM AND
26.0 ROCKWELL C MAXIMUM
NUT STYLEHEXAGON
NUT HEIGHT0.178 INCHES MINIMUM AND
0.198 INCHES MAXIMUM
WIDTH ACROSS FLATS0.555 INCHES MINIMUM AND
0.564 INCHES MAXIMUM
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED
COUNTERSINK ANGLE88.0 DEGREES MINIMUM AND
92.0 DEGREES MAXIMUM NUT
BEARING SURFACE FINISH60.0 MICROINCHES
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE81352
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEAN150410


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