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National Stock Number:
5310-01-031-5110
Federal Supply Class:
5310
National Item Identification Number:
010315110
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:
| 12387305-56 | 19207 | U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM | | MS51967-56 | 96906 | MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M |
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Techincal Specification:
| BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED | | HARDNESS RATING | 90.0 ROCKWELL B MINIMUM AND 32.0 ROCKWELL C MAXIMUM | | MATERIAL | STEEL OVERALL | | NOMINAL THREAD SIZE | 2.750 INCHES | | NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND B GRADE | | NUT HEIGHT | 2.303 INCHES MINIMUM AND 2.415 INCHES MAXIMUM | | NUT STYLE | HEXAGON | | WIDTH ACROSS FLATS | 3.988 INCHES MINIMUM AND 4.125 INCHES MAXIMUM | | SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL | | SURFACE TREATMENT | CADMIUM OVERALL | | THREAD CLASS | 2B | | THREAD DIRECTION | RIGHT-HAND | | THREAD SERIES | UNC | | THREAD QUANTITY PER INCH | 4 |
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