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National Stock Number:
5310-01-014-2239
Federal Supply Class:
5310
National Item Identification Number:
010142239
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:
| MIL-DTL-1222 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | MIL-S-1222 | 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 TYPE | WASHER FACED | | HARDNESS RATING | 179.0 BRINELL HULTGREN MINIMUM AND 89.9 ROCKWELL C MINIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-1222,TYPE 2,GRADE H MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD SIZE | 0.312 INCHES | | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND H SYMBOL | | NUT HEIGHT | 0.280 INCHES MINIMUM AND 0.314 INCHES MAXIMUM | | NUT STYLE | HEXAGON | | WIDTH ACROSS FLATS | 0.546 INCHES MINIMUM AND 0.562 INCHES MAXIMUM | | TEMP RATING | 875.0 FAHRENHEIT NOMINAL | | THREAD CLASS | 2B | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES | UNC | | THREAD QUANTITY PER INCH | 18 |
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