3040-00-457-3916 COLLAR,SHAFT Index 3040-00-457-3943 COLLAR,SHAFT

National Stock Number:
5310-00-457-3918

Federal Supply Class:
5310

National Item Identification Number:
004573918

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:
05-14559-0082483SPENCE ENGINEERING CO INC DBA NICHOLSON STEAM TRAP
P00-532018265DONALDSON COMPANY, INC.


Techincal Specification:
BEARING SURFACE TYPEFLAT
NUT HEIGHT0.266 INCHES NOMINAL
NUT STYLEHEXAGON
MATERIAL DOCUMENT AND CLASSIFICATIONSAE,GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD SIZE0.312 INCHES
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH18
WIDTH ACROSS FLATS0.500 INCHES NOMINAL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND


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