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National Stock Number:
5310-01-355-0867
Federal Supply Class:
5310
National Item Identification Number:
013550867
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:
| 0.31218UNC2BT2G400NSA/BEA | 81349 | MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | | 845-65563221 ITEM 37 | 53711 | NAVAL SEA SYSTEMS COMMAND | | 845-6556322ITEM37 | 53711 | NAVAL SEA SYSTEMS COMMAND |
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Techincal Specification:
| BEARING SURFACE TYPE | FLAT | | HARDNESS RATING | 80.0 ROCKWELL B MINIMUM | | NUT HEIGHT | 0.180 INCHES MINIMUM AND 0.195 INCHES MAXIMUM | | NUT STYLE | HEXAGON | | MATERIAL DOCUMENT AND CLASSIFICATION | SAE J429 TY II,GR 400 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL | | MATERIAL | NICKEL ALLOY OVERALL | | NOMINAL THREAD SIZE | 0.312 INCHES | | WIDTH ACROSS FLATS | 0.489 INCHES MINIMUM AND 0.500 INCHES MAXIMUM | | THREAD CLASS | 2B | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES | UNC | | THREAD QUANTITY PER INCH | 18 |
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