5310-00-804-1209 NUT,PLAIN,HEXAGON Index 2990-00-804-1212 SPRING,HELICAL,EXTENSION

National Stock Number:
5310-00-804-1211

Federal Supply Class:
5310

National Item Identification Number:
008041211

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:
AN335-888044AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE
FFB571TYPEA381348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
BEARING SURFACE TYPEWASHER FACED
MATERIAL DOCUMENT AND CLASSIFICATIONAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1010 OVERALL
NOMINAL THREAD SIZE0.500 INCHES
NUT HEIGHT0.427 INCHES MINIMUM AND 0.442 INCHES MAXIMUM
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.812 INCHES NOMINAL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONAN-P-32 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD CLASS2B
THREAD DIRECTIONLEFT-HAND
THREAD QUANTITY PER INCH13
THREAD SERIESUNC


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