NSN 5310-01-031-2124
Part Details | HEXAGON PLAIN NUT
5310-01-031-2124 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.)
Alternate Parts: 6440309 PIECE F121, 6440-309 PIECE F121, MILS1222, MIL-S-1222, MILDTL1222, MIL-DTL-1222, 6440309 PIECE F121L1, 6440-309 PIECE F121L1, MILS1222L1, MIL-S-1222L1, 5310-01-031-2124, 01-031-2124, 5310010312124, 010312124
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | NOV 20, 1976 | 01-031-2124 | 01857 ( NUT, PLAIN, HEXAGON ) |
REFERENCE DRAWINGS & PICTURES
HEXAGON
Cross Reference | NSN 5310-01-031-2124
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 6440-309 PIECE F121 | 43689 | HUNTINGTON INGALLS INCORPORATEDDIV NEWPORT NEWS |
| MIL-S-1222 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| MIL-DTL-1222 | 81349 | MILITARY SPECIFICATIONSPROMULGATED BY MILITARY |
| 6440-309 PIECE F121L1 | 03950 | NAVAL INVENTORY CONTROL POINTMECHANICSBURG |
| MIL-S-1222L1 | 03950 | NAVAL INVENTORY CONTROL POINTMECHANICSBURG |
Technical Data | NSN 5310-01-031-2124
| Characteristic | Specifications |
|---|---|
| THREAD SERIES | UNC |
| NOMINAL THREAD SIZE | 1.250 INCHES |
| THREAD QUANTITY PER INCH | 7 |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND 32.0 ROCKWELL C MAXIMUM |
| NUT STYLE | HEXAGON |
| NUT HEIGHT | 1.187 INCHES MINIMUM AND 1.251 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 1.938 INCHES MINIMUM AND 2.000 INCHES MAXIMUM |
| BEARING SURFACE TYPE | WASHER FACED |
| NONDEFINITIVE SPEC/STD DATA | 3 TYPE AND 4 GRADE |
| DEPARTURE FROM CITED DESIGNATOR | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| CRITICALITY CODE JUSTIFICATION | ZZZX |
