4540-01-203-8390 HEATING ELEMENT,ELECTRICAL,NONIMMERSION TYPE Index 5310-01-203-8392 NUT,PLAIN,HEXAGON

National Stock Number:
5310-01-203-8391

Federal Supply Class:
5310

National Item Identification Number:
012038391

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:
NAS1423-08LH80205NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE


Techincal Specification:
DRILLED HOLE DIAMETER0.034 INCHES MINIMUM AND 0.039 INCHES MAXIMUM
BEARING SURFACE FINISH125.0 MICROINCHES
BEARING SURFACE TYPECHAMFERED
COUNTERSINK ANGLE110.0 DEGREES NOMINAL BOTH ENDS
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM
HOLE CONFIGURATION STYLECONFIGURATION B
HOLE TYPE AND QUANTITY3 DRILLED
NUT HEIGHT0.156 INCHES NOMINAL
NUT STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL STD SINGLE MATERIAL RESPONSE OR MIL-S-5000 MIL STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4130 OR STEEL COMP 4340 OVERALL
NOMINAL THREAD SIZE0.1640 INCHES
THREAD SERIESUNJC
THREAD QUANTITY PER INCH32
WIDTH ACROSS FLATS0.334 INCHES MINIMUM AND 0.346 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA80205-NAS1423 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE2,CLASS2 MIL STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
THREAD CLASS3B
THREAD DIRECTIONLEFT-HAND


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