5305-01-352-1155 SCREW,TAPPING Index 5310-01-352-1157 NUT,PLAIN,EXTENDED WASHER,HEXAGO

National Stock Number:
5310-01-352-1156

Federal Supply Class:
5310

National Item Identification Number:
013521156

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:
EE87885-12380020NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION CODE 4.8.8.0.0.B BLDG 148-2


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM
NUT HEIGHT0.375 INCHES NOMINAL
NUT STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 4130 OVERALL
NOMINAL THREAD SIZE0.190 INCHES
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
WIDTH ACROSS FLATS0.438 INCHES NOMINAL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNF
THREAD QUANTITY PER INCH32


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