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National Stock Number: 5310-01-197-3570
Federal Supply Class: 5310
National Item Identification Number: 011973570
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:
MS51969-20 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED | MATERIAL DOCUMENT AND CLASSIFICATION | QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL | MATERIAL | COPPER ALLOY 462 OR COPPER ALLOY 464 OVERALL | NOMINAL THREAD SIZE | 3.000 INCHES | NUT STYLE | HEXAGON | NUT HEIGHT | 2.518 INCHES MINIMUM AND 2.638 INCHES MAXIMUM | WIDTH ACROSS FLATS | 4.350 INCHES MINIMUM AND 4.500 INCHES MAXIMUM | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL | SURFACE TREATMENT | OXIDE FILM OVERALL | THREAD DIRECTION | RIGHT-HAND | THREAD CLASS | 2B | THREAD SERIES | UNC | THREAD QUANTITY PER INCH | 4 |
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