| BEARING SURFACE TYPE | CHAMFERED |
| COUNTERBORE DIAMETER | 0.224 INCHES MINIMUM AND 0.228 INCHES MAXIMUM OVERALL |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| NUT COUNTERBORE DEPTH | 0.102 INCHES MINIMUM AND 0.112 INCHES MAXIMUM OVERALL |
| NUT HEIGHT | 0.280 INCHES MAXIMUM |
| SPECIAL FEATURES | ITEM IS FAA CERTIFIED |
| WIDTH ACROSS FLATS | 0.243 INCHES MINIMUM AND 0.251 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2700, TYPE 2 OR 8 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |