5305-01-197-3569 SCREW,CLOSE TOLERANCE Index 5310-01-197-3571 NUT,PLAIN,HEXAGON

National Stock Number:
5310-01-197-3570

Federal Supply Class:
5310

National Item Identification Number:
011973570

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:
MS51969-2096906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
THREAD SERIESUNC
NOMINAL THREAD SIZE3.000 INCHES
THREAD QUANTITY PER INCH4
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALCOPPER ALLOY 462 OR
COPPER ALLOY 464 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTOXIDE FILM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
NUT STYLEHEXAGON
NUT HEIGHT2.518 INCHES MINIMUM AND
2.638 INCHES MAXIMUM
WIDTH ACROSS FLATS4.350 INCHES MINIMUM AND
4.500 INCHES MAXIMUM
BEARING SURFACE TYPECHAMFERED OR
WASHER FACED
SPEC/STD CONTROLLING DATA
MANUFACTURERS CODE96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCEMS51969-20


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