5305-01-389-8019 SCREW,CAP,SOCKET HEAD Index 5310-01-389-8021 WASHER,FLAT

National Stock Number:
5310-01-389-8020

Federal Supply Class:
5310

National Item Identification Number:
013898020

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:
77C957412P103538LOCKHEED MARTIN CORPORATION


Techincal Specification:
BEARING SURFACE TYPEWASHER FACED
NOMINAL THREAD SIZE1.625 INCHES
NUT HEIGHT0.660 INCHES NOMINAL
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH18
THREAD SERIESUNEF
WIDTH ACROSS FLATS2.125 INCHES NOMINAL


Click here to Register for Free 30-day Trial