| COUNTERBORE DIAMETER | 0.042 INCHES MINIMUM AND 0.072 INCHES MAXIMUM BOSS |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| NUT COUNTERBORE DEPTH | 0.195 INCHES MINIMUM AND 0.200 INCHES MAXIMUM BOSS |
| NUT LENGTH | 0.353 INCHES MINIMUM AND 0.359 INCHES MAXIMUM |
| NUT HEIGHT | 0.301 INCHES MINIMUM AND 0.322 INCHES MAXIMUM |
| PILOT LENGTH | 0.054 INCHES MINIMUM AND 0.060 INCHES MAXIMUM |
| PILOT DIAMETER | 0.235 INCHES MINIMUM AND 0.239 INCHES MAXIMUM |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 32 |
| WIDTH ACROSS FLATS | 0.315 INCHES MINIMUM AND 0.321 INCHES MAXIMUM |