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National Stock Number:
5310-00-297-8828
Federal Supply Class:
5310
National Item Identification Number:
002978828
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:
| MILB857TYPE3STYLEA0RBGRADE5 | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| THREAD SERIES | UNF | | NOMINAL THREAD SIZE | 0.500 INCHES | | THREAD QUANTITY PER INCH | 20 | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | MATERIAL | STEEL OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | HARDNESS RATING | 23.0 ROCKWELL C MINIMUM AND | | 32.0 ROCKWELL C MAXIMUM | | NUT STYLE | HEXAGON | | NUT HEIGHT | 0.687 INCHES NOMINAL | | WIDTH ACROSS FLATS | 0.736 INCHES MINIMUM AND | | 0.750 INCHES MAXIMUM | | BEARING SURFACE TYPE | WASHER FACED | | NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND | | A STYLE AND | | 5 GRADE OR | | 3 TYPE AND | | B STYLE AND | | 5 GRADE | | DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY OVERALL HEIGHT | | SPEC/STD CONTROLLING DATA | | | MANUFACTURERS CODE | 81349 | | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MILB857TYPE3STYLEA0RBGRADE5 |
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