| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | PLASTIC POLYAMIDE LOCKING INSERT |
| STEEL NUT |
| NUT STYLE | HEXAGON |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| BEARING SURFACE TYPE | CHAMFERED |
| THREAD SERIES | UNC |
| NOMINAL THREAD SIZE | 0.375 INCHES |
| THREAD QUANTITY PER INCH | 16 |
| THREAD CLASS | 3B |
| MATERIAL DOCUMENT AND CLASSIFICATION | SAE J985, GRADE 8 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| SURFACE TREATMENT | ZINC NUT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633, TYPE II, FE/ZN 8 ASSN STD SINGLE TREATMENT RESPONSE NUT |
| HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND |
| 32.0* ROCKWELL C MAXIMUM |
| NUT HEIGHT | 0.438 INCHES MINIMUM AND |
| 0.468 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.551 INCHES MINIMUM AND |
| 0.564 INCHES MAXIMUM |
| TEMP RATING | 250.0 DEG FAHRENHEIT NOMINAL |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | M45913/3-6CG8Z |