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National Stock Number:
5310-01-314-7051
Federal Supply Class:
5310
National Item Identification Number:
013147051
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:
| 717500021-002 | 04939 | LOCKHEED MARTIN CORPORATION | | 717500021-002 | 0SYU2 | FASTENER DIMENSIONS INC. |
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Techincal Specification:
| BEARING SURFACE TYPE | WASHER FACED | | HARDNESS RATING | 34.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM | | MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5525 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5732 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5737 ASSN STD 3RD MATERIAL RESPONSE OVERALL | | MATERIAL | IRON ALLOY 660 OVERALL | | NOMINAL THREAD SIZE | 0.5625 INCHES | | NUT HEIGHT | 0.345 INCHES MINIMUM AND 0.405 INCHES MAXIMUM | | NUT STYLE | HEXAGON | | SPECIAL FEATURES | NUT, DRILLED JAM-THREE DRILLED HOLES EVERY OTHER CORNER .046 +.004 OR -.001 | | SURFACE TREATMENT | PASSIVATE OVERALL | | THREAD CLASS | 3B | | THREAD DIRECTION | RIGHT-HAND | | THREAD QUANTITY PER INCH | 18 | | THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) | | WIDTH ACROSS FLATS | 0.845 INCHES MINIMUM AND 0.905 INCHES MAXIMUM |
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