| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 316 OVERALL |
| NUT STYLE | HEXAGON |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| BEARING SURFACE TYPE | CHAMFERED |
| THREAD SERIES | UNF |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 2B |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM F594,GROUP 1 OR 2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SAE-AMS 2700, METHOD 1, TYPE 6 OR 7, CLASS 1 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| NUT HEIGHT | 0.117 INCHES MINIMUM AND |
| 0.241 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.362 INCHES MINIMUM AND |
| 0.376 INCHES MAXIMUM |
| BEARING SURFACE FINISH | 125.0 MICROINCHES |
| SPECIAL FEATURES | MINIMUM TENSILE STRENGTH IS 70.000 PSI |
| SPECIFICATION/STANDARD DATA | 81349-MIL-DTL-45913/2A GOVERNMENT SPECIFICATION |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NUT, SELF-LOCKING, HEXAGON, ALL-METAL LOCKING FEATURE, 250F, UNC/UNF-2B |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | M45913/2-010FS6 |