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
MATERIAL DOCUMENT AND CLASSIFICATIONSAE,GR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
NOMINAL THREAD SIZE0.312 INCHES
NUT HEIGHT0.266 INCHES NOMINAL
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.500 INCHES NOMINAL
THREAD DIRECTIONRIGHT-HAND
THREAD CLASS2B
THREAD SERIESUNC
THREAD QUANTITY PER INCH18


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