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		                        | National Stock Number:
 5310-01-569-5929
 
 Federal Supply Class:
 5310
 
 National Item Identification Number:
 015695929
 
 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:
 
 | 99612A119 | 39428 | MCMASTER-CARR SUPPLY CO | 
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 Techincal Specification:
 
 | BEARING SURFACE TYPE | FLAT |  | HARDNESS RATING | 32.0 ROCKWELL C MAXIMUM |  | PART NAME ASSIGNED BY CONTROLLING AGENCY | GRADE 5 ZINC PLATED STEEL LEFT HAND THREAD HEX NUT |  | MATERIAL | STEEL OVERALL |  | NOMINAL THREAD SIZE | 0.375 INCHES |  | NUT HEIGHT | 0.219 INCHES NOMINAL |  | NUT STYLE | HEXAGON |  | SPECIAL FEATURES | ITEM GRADE/CLASS IS GRADE 5 |  | SURFACE TREATMENT | ZINC OVERALL |  | THREAD CLASS | 2A |  | THREAD DIRECTION | LEFT-HAND |  | THREAD QUANTITY PER INCH | 24 |  | THREAD SERIES | UNF |  | WIDTH ACROSS FLATS | 0.562 INCHES NOMINAL | 
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