5305-00-485-9259 SCREW,MACHINE Index 2530-00-485-9261 CABLE,EMERGENCY BRA

National Stock Number:
5310-00-485-9260

Federal Supply Class:
5310

National Item Identification Number:
004859260

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:
10-579128839TELEDYNE INDUSTRIES INC TELEDYNE POWER SYSTEMS DIV
10-579159501UNISON INDUSTRIES LLC
10-579177820AMPHENOL CORP


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 410 OVERALL
NOMINAL THREAD SIZE0.250 INCHES
NUT HEIGHT0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
SURFACE TREATMENTPASSIVATE OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNF
THREAD QUANTITY PER INCH28


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