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National Stock Number:
5310-99-155-5645
Federal Supply Class:
5310
National Item Identification Number:
991555645
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:
| BS1768 | K7766 | BRITISH STANDARDS INSTITUTION | | BS1768 1/4 IN. UNC | K7766 | BRITISH STANDARDS INSTITUTION | | G101/5596 ITEM 11 | K7705 | KNDS DEFENCE UK LIMITED | | G101/5596/11 | K7705 | KNDS DEFENCE UK LIMITED | | N4030110 | K7705 | KNDS DEFENCE UK LIMITED |
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Techincal Specification:
| BEARING SURFACE TYPE | UNFINISHED | | HARDNESS RATING | NOT RATED | | MATERIAL DOCUMENT AND CLASSIFICATION | 720 CLASS G GRADE 1 MFR REF SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD SIZE | 0.500 INCHES | | NUT HEIGHT | 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM | | NUT STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.430 INCHES MINIMUM AND 0.437 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DEF STAN 03-20 MIL STD 1ST TREATMENT RESPONSE AND DEF STAN 03-33 MIL STD 2ND TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | ZINC AND PASSIVATE OVERALL | | THREAD CLASS | 2B | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 20 | | THREAD SERIES | UNC |
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