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National Stock Number:
5310-00-519-1143
Federal Supply Class:
5310
National Item Identification Number:
005191143
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:
| 5191143 | 19204 | ARMY, UNITED STATES DEPARTMENT OF THE |
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Techincal Specification:
| BEARING SURFACE FINISH | 125.0 MICROINCHES | | BEARING SURFACE TYPE | WASHER FACED | | HARDNESS RATING | 18.0 ROCKWELL C MINIMUM AND 27.0 ROCKWELL C MAXIMUM | | HOLE CONFIGURATION STYLE | CONFIGURATION A | | HOLE NOMINAL THREAD DIAMETER | 0.250 INCHES | | HOLE TYPE AND QUANTITY | 1 TAPPED | | MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A322 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A331 ASSN STD 1ST MATERIAL RESPONSE OR ASTM A322 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A331 ASSN STD 2ND MATERIAL RESPONSE OR ASTM A322 ASSN STD 3RD MATERIAL RESPONSE OR ASTM 331 ASSN STD 3RD MATERIAL RESPONSE OR ASTM A108 ASSN STD 4TH MATERIAL RESPONSE OVERALL | | MATERIAL | STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 1335 OR STEEL COMP 1045 OVERALL | | NOMINAL THREAD SIZE | 1.438 INCHES | | NUT HEIGHT | 0.615 INCHES MINIMUM AND 0.635 INCHES MAXIMUM | | NUT STYLE | HEXAGON | | WIDTH ACROSS FLATS | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM | | SURFACE TREATMENT | PHOSPHATE OVERALL | | THREAD DIRECTION | RIGHT-HAND | | THREAD CLASS | 3B | | THREAD SERIES | UN | | THREAD QUANTITY PER INCH | 12 |
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