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		                             National Stock Number: 5310-00-167-1314
  Federal Supply Class: 5310
  National Item Identification Number: 001671314
  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:
 | AN315D4L | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |  | MILN6034 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |   
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  Techincal Specification:
 | BEARING SURFACE FINISH | 125.0 MICROINCHES |  | BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |  | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/3 FED SPEC SINGLE MATERIAL RESPONSE  OR QQ-A-225/6 FED SPEC SINGLE MATERIAL RESPONSE  OR QQ-A-250/4 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |  | MATERIAL | ALUMINUM ALLOY 2024 OVERALL |  | NOMINAL THREAD SIZE | 0.250 INCHES |  | NUT HEIGHT | 0.172 INCHES MINIMUM AND 0.204 INCHES MAXIMUM |  | NUT STYLE | HEXAGON |  | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC 1ST TREATMENT RESPONSE  OR MIL-A-8625 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |  | SURFACE TREATMENT | OXIDE FILM  OR ANODIZE OVERALL |  | THREAD CLASS | 3B |  | THREAD DIRECTION | LEFT-HAND |  | THREAD QUANTITY PER INCH | 28 |  | THREAD SERIES | UNF |  | WIDTH ACROSS FLATS | 0.428 INCHES MINIMUM AND 0.440 INCHES MAXIMUM |   
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