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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:
| THREAD SERIES | UN | | NOMINAL THREAD SIZE | 1.438 INCHES | | THREAD QUANTITY PER INCH | 12 | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | MATERIAL | STEEL COMP 4140 OR | | STEEL COMP 8640 OR | | STEEL COMP 1335 OR | | STEEL COMP 1045 OVERALL | | 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 A331 ASSN STD 3RD MATERIAL RESPONSE OR | | ASTM A108 ASSN STD 4TH MATERIAL RESPONSE OVERALL | | SURFACE TREATMENT | PHOSPHATE OVERALL | | HARDNESS RATING | 18.0 ROCKWELL C MINIMUM AND | | 27.0 ROCKWELL C MAXIMUM | | NUT STYLE | HEXAGON | | NUT HEIGHT | 0.615 INCHES MINIMUM AND | | 0.635 INCHES MAXIMUM | | WIDTH ACROSS FLATS | 1.990 INCHES MINIMUM AND | | 2.010 INCHES MAXIMUM | | HOLE CONFIGURATION STYLE | CONFIGURATION A | | HOLE TYPE AND QUANTITY | 1 TAPPED | | HOLE NOMINAL THREAD DIAMETER | 0.250 INCHES | | BEARING SURFACE TYPE | WASHER FACED | | BEARING SURFACE FINISH | 125.0 MICROINCHES |
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