5305-00-438-8742 SCREW ASSEMBLY,PANEL Index 5305-00-438-8760 SCREW,SHOULDER

National Stock Number:
5310-00-438-8747

Federal Supply Class:
5310

National Item Identification Number:
004388747

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:
134-5827443999THE BOEING COMPANY


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-354,COND T FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALALUMINUM ALLOY 2024 OVERALL
NOMINAL THREAD SIZE1.375 INCHES
NUT HEIGHT0.219 INCHES MINIMUM AND 0.281 INCHES MAXIMUM
NUT STYLEHEXAGON
SPECIAL FEATURESCORNERS ROUNDED OFF
SURFACE TREATMENTANODIZE OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH18
THREAD SERIESUNEF
WIDTH ACROSS FLATS1.656 INCHES MINIMUM AND 1.719 INCHES MAXIMUM


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