5325-00-005-0578 RING,RETAINING Index 5305-00-005-0580 SCREW,MACHINE

National Stock Number:
5310-00-005-0579

Federal Supply Class:
5310

National Item Identification Number:
000050579

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:
FF-N-83681348FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC
MS27952-1996906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
MATERIALSTEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OVERALL
NOMINAL THREAD SIZE1.250 INCHES
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 5 STYLE
NUT STYLEHEXAGON
NUT HEIGHT0.687 INCHES MINIMUM AND 0.751 INCHES MAXIMUM
WIDTH ACROSS FLATS1.812 INCHES MINIMUM AND 1.875 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM A153 ASSN STD 1ST TREATMENT RESPONSE AND MIL-T-12879 CANCELLED MIL SPEC 2ND TREATMENT RESPONSE OVERALL
SURFACE TREATMENTZINC AND CHROMATE OVERALL
THREAD CLASS2B
THREAD DIRECTIONLEFT-HAND
THREAD QUANTITY PER INCH7
THREAD SERIESUNC


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