4470-01-028-2778 PLUG,SPECIAL Index 5310-01-028-2781 WASHERS,SPECIAL

National Stock Number:
5310-01-028-2779

Federal Supply Class:
5310

National Item Identification Number:
010282779

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:
1022048918876U S ARMY AVIATION AND MISSILE COMMAND


Techincal Specification:
THREAD DIRECTIONRIGHT-HAND
BEARING SURFACE TYPECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 303 OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
WIDTH ACROSS FLATS0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM
COUNTERSINK ANGLE110.0 DEGREES NOMINAL NUT
NUT HEIGHT0.0940 INCHES NOMINAL
NUT STYLEHEXAGON
THREAD CLASS2B
NOMINAL THREAD SIZE0.312 INCHES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNEF
THREAD QUANTITY PER INCH32


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