| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | 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 J995,GRADE 5 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| SURFACE TREATMENT | ZINC NUT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM B633,TY II,FE/ZN 8 ASSN STD SINGLE TREATMENT RESPONSE NUT |
| NUT HEIGHT | 0.438 INCHES MINIMUM AND |
| 0.468 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.551 INCHES MINIMUM AND |
| 0.564 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 81349-MIL-DTL-45913/3B GOVERNMENT SPECIFICATION |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT,SELF-LOCKING,HEXAGON,NON-METALLIC LOCKING FEATURE,250 DEG F,UNC/UNF-3B |
| SPEC/STD CONTROLLING DATA | |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-DTL-45913/3B |
| MANUFACTURERS CODE | 81349 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | M45913/3-6CG5Z |