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		                        | National Stock Number:
 5310-00-271-4587
 
 Federal Supply Class:
 5310
 
 National Item Identification Number:
 002714587
 
 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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 Techincal Specification:
 
 | BEARING SURFACE FINISH | 125.0 MICROINCHES |  | BEARING SURFACE TYPE | FLAT |  | COUNTERSINK ANGLE | 82.0 DEGREES NOMINAL NUT |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |  | MATERIAL | COPPER ALLOY 464 OVERALL |  | NOMINAL THREAD SIZE | 0.625 INCHES |  | NUT HEIGHT | 0.178 INCHES MINIMUM AND 0.198 INCHES MAXIMUM |  | NUT STYLE | HEXAGON |  | WIDTH ACROSS FLATS | 0.933 INCHES MINIMUM AND 0.938 INCHES MAXIMUM |  | THREAD CLASS | 2B |  | THREAD DIRECTION | RIGHT-HAND |  | THREAD SERIES | UN |  | THREAD QUANTITY PER INCH | 20 | 
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