4820-00-371-7137 DIAPHRAGM,VALVE,FLAT Index 4210-00-371-7142 SCREEN,SUCTION PIPE

National Stock Number:
5310-00-371-7141

Federal Supply Class:
5310

National Item Identification Number:
003717141

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:
503779218WATEROUS COMPANY
A1141APC10179218WATEROUS COMPANY
A1577PC10179218WATEROUS COMPANY
S4700-3004865PC10180064NAVAL SHIP SYSTEMS COMMAND
S4700-3113712PC10180064NAVAL SHIP SYSTEMS COMMAND


Techincal Specification:
BEARING SURFACE TYPEFLAT
NUT HEIGHT0.261 INCHES NOMINAL
NUT STYLEHEXAGON
MATERIALCOPPER ALLOY OVERALL
NOMINAL THREAD SIZE0.312 INCHES
SPECIAL FEATURESNOTCH ON ONE SIDE
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH18
WIDTH ACROSS FLATS0.498 INCHES NOMINAL
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND


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