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National Stock Number:
5310-01-269-9242
Federal Supply Class:
5310
National Item Identification Number:
012699242
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:
| 74D111355-2101 | 76301 | THE BOEING COMPANY |
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Techincal Specification:
| THREAD SERIES | UNJF | | NOMINAL THREAD SIZE | 0.250 INCHES | | THREAD QUANTITY PER INCH | 28 | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | MATERIAL | STEEL COMP 416 OVERALL | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5610 ASSN STD SINGLE MATERIAL RESPONSE OVERALL | | HARDNESS RATING | 57.0 ROCKWELL C MINIMUM AND | | 60.0 ROCKWELL C MAXIMUM | | NUT STYLE | HEXAGON | | NUT HEIGHT | 0.282 INCHES MINIMUM AND | | 0.292 INCHES MAXIMUM | | WIDTH ACROSS FLATS | 0.625 INCHES NOMINAL | | BEARING SURFACE TYPE | CHAMFERED OR | | WASHER FACED | | NUT COUNTERBORE DEPTH | 0.175 INCHES MINIMUM AND | | 0.180 INCHES MAXIMUM FIRST END | | COUNTERBORE DIAMETER | 0.420 INCHES NOMINAL FIRST END |
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