5310-00-656-0389 WASHER,FLAT Index 5305-00-656-0392 SCREW,ASSEMBLED WASHER

National Stock Number:
5310-00-656-0391

Federal Supply Class:
5310

National Item Identification Number:
006560391

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:
BACN10MNJ1008903THE BOEING COMPANY
BACN10MNJ1081205THE BOEING COMPANY
MS35691-100596906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
HARDNESS RATING121.0 BRINELL STANDARD MINIMUM
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.625 INCHES
NUT HEIGHT0.363 INCHES MINIMUM AND 0.387 INCHES MAXIMUM
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.9220 INCHES MINIMUM AND 0.9375 INCHES MAXIMUM
SPECIFICATION/STANDARD DATA81205-BACN10MN MANUFACTURERS STANDARD
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-P-16232,TY Z,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTPHOSPHATE ZINC OVERALL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH11
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)


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