5330-00-275-3488 GASKET Index 5331-00-275-3491 O-RING

National Stock Number:
5310-00-275-3490

Federal Supply Class:
5310

National Item Identification Number:
002753490

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:
BS4-1801-1663857CIRCOR NAVAL SOLUTIONS LLC
BS4-1801PC1663857CIRCOR NAVAL SOLUTIONS LLC
BS4-1816PC1663857CIRCOR NAVAL SOLUTIONS LLC
BS4-1817PC3963857CIRCOR NAVAL SOLUTIONS LLC
F11563857CIRCOR NAVAL SOLUTIONS LLC


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-N-281 FED SPEC ALL MATERIAL RESPONSES OVERALL
MATERIALNICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
NOMINAL THREAD SIZE0.500 INCHES
NUT HEIGHT0.312 INCHES NOMINAL
NUT STYLEHEXAGON
THREAD CLASS3B
THREAD DIRECTIONLEFT-HAND
THREAD SERIESUNF
THREAD QUANTITY PER INCH20
WIDTH ACROSS FLATS0.875 INCHES NOMINAL


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