| MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 81349 |
| MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M | 96906 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| NUT STYLE | HEXAGON |
| NUT HEIGHT | 0.359 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.489 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| TEMP RATING | 250.0 DEG FAHRENHEIT NOMINAL |
| THREAD SERIES | UNC |
| THREAD QUANTITY PER INCH | 18 |
| HARDNESS RATING | 26.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| BEARING SURFACE TYPE | CHAMFERED OR WASHER FACED |
| MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| MATERIAL | STEEL NUT |
| SURFACE TREATMENT | PHOSPHATE ZINC NUT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-P-16232,TY Z,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE NUT |
| THREAD SERIES DESIGNATOR | UNC |
| A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes NUT (1), SELF-LOCKING, CAP. |
