5305-01-310-3964 SCREW ASSEMBLY,PANEL Index 5310-01-310-3966 NUT,PLAIN,EXTENDED WASHER,HEXAGO

National Stock Number:
5310-01-310-3965

Federal Supply Class:
5310

National Item Identification Number:
013103965

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:
3M966-1076301THE BOEING COMPANY
3M966-108K160UNIREX, INC.
3M966-1092595NELSON STUD WELDING, INC


Techincal Specification:
THREAD SERIESUNJF
NOMINAL THREAD SIZE0.625 INCHES
THREAD QUANTITY PER INCH18
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 4130 OR
STEEL COMP 4140 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE OR
MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OVERALL
SURFACE TREATMENTCADMIUM AND
CHROMATE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HARDNESS RATING34.0 ROCKWELL C MINIMUM AND
38.0 ROCKWELL C MAXIMUM
NUT STYLEHEXAGON
NUT HEIGHT0.250 INCHES NOMINAL
WIDTH ACROSS FLATS0.800 INCHES MINIMUM AND
0.814 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


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