5305-00-005-0644 SCREW,CLOSE TOLERANCE Index 5305-00-005-0648 SCREW,CLOSE TOLERANCE

National Stock Number:
5310-00-005-0647

Federal Supply Class:
5310

National Item Identification Number:
000050647

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
MS25082-B1896906MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M


Techincal Specification:
BEARING SURFACE TYPECHAMFERED
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,1/2 H FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 360 OVERALL
NOMINAL THREAD SIZE0.438 INCHES
NONDEFINITIVE SPEC/STD DATA2 TYPE
NUT HEIGHT0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM
NUT STYLEHEXAGON
WIDTH ACROSS FLATS0.496 INCHES MINIMUM AND 0.504 INCHES MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
SURFACE TREATMENTOXIDE OVERALL
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH32
THREAD PITCH DIAMETERS+0.4177 TO 0.4217 INCHES
THREAD SERIESUNS


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