4820-00-012-1982 VALVE,GATE Index 1560-00-012-1984 STRINGER,FLOOR TAIL

National Stock Number:
5310-00-012-1983

Federal Supply Class:
5310

National Item Identification Number:
000121983

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:
12198321450ARMY WEAPONS COMMAND ATTN AMSWE-REE-S
12198324617GENERAL MOTORS CORP
1219837X677GENERAL MOTORS LLC
FFB571TYPEA81348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.562 INCHES
NONDEFINITIVE SPEC/STD DATAA TYPE
NUT STYLEHEXAGON
NUT HEIGHT0.473 INCHES MINIMUM AND 0.496 INCHES MAXIMUM
WIDTH ACROSS FLATS0.8610 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
THREAD CLASS3B
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH18
THREAD SERIESUNF


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