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National Stock Number: 5310-01-286-0879
Federal Supply Class: 5310
National Item Identification Number: 012860879
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.)
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Manufacturer Information:
MS9553-08 | 0U583 | SAE INTERNATIONAL | MS9553-08 | 81343 | SOCIETY OF AUTOMOTIVE ENGINEERS INC | MS9553-08 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
THREAD SERIES | UNJF | NOMINAL THREAD SIZE | 0.750 INCHES | THREAD QUANTITY PER INCH | 16 | THREAD CLASS | 3B | THREAD DIRECTION | RIGHT-HAND | MATERIAL | STEEL COMP 304 OVERALL | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5639 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | NUT STYLE | HEXAGON | NUT HEIGHT | 0.344 INCHES NOMINAL | WIDTH ACROSS FLATS | 0.990 INCHES MINIMUM AND | | 1.002 INCHES MAXIMUM | BEARING SURFACE TYPE | CHAMFERED | NUT COUNTERBORE DEPTH | 0.037 INCHES MINIMUM AND | | 0.047 INCHES MAXIMUM NUT | COUNTERBORE DIAMETER | 0.915 INCHES MINIMUM AND | | 0.925 INCHES MAXIMUM NUT | COUNTERSINK ANGLE | 110.0 DEGREES NOMINAL NUT | BEARING SURFACE FINISH | 125.0 MICROINCHES |
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