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National Stock Number:
5310-00-266-0517
Federal Supply Class:
5310
National Item Identification Number:
002660517
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:
| 0424-010 | 56232 | LOCKHEED MARTIN CORPORATION | | 10043852 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND | | NUT,HEX,CRES,PASS,5-40NC | 1FH08 | LEHIGH ARMSTRONG INC | | 5-40SST3 | 70318 | ALLMETAL SCREW PRODUCTS CORP | | AN340C5 | 88044 | AERONAUTICAL STANDARDS GROUP DEPT OF NAVY AND AIR FORCE |
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Techincal Specification:
| BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED | | COUNTERSINK ANGLE | 110.0 DEGREES NOMINAL NUT | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-18732 MIL SPEC 1ST MATERIAL RESPONSE OR ASTM A582 ASSN STD 2ND MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL CORROSION RESISTING OR STEEL COMP 303 OVERALL | | NOMINAL THREAD SIZE | 0.125 INCHES | | NUT HEIGHT | 0.102 INCHES MINIMUM AND 0.114 INCHES MAXIMUM | | NUT STYLE | HEXAGON | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 2B | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 40 | | THREAD SERIES | UNIFIED NATIONAL COARSE (UNC) | | WIDTH ACROSS FLATS | 0.302 INCHES MINIMUM AND 0.313 INCHES MAXIMUM |
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