| COUNTERBORE DIAMETER | 0.220 INCHES MINIMUM AND 0.225 INCHES MAXIMUM FIRST END |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| NUT COUNTERBORE DEPTH | 0.095 INCHES NOMINAL FIRST END |
| NUT HEIGHT | 0.328 INCHES MINIMUM AND 0.358 INCHES MAXIMUM |
| NUT STYLE | SPLINE |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | NAVY SPECIAL PROJECT |
| PILOT LENGTH | 0.105 INCHES NOMINAL |
| PILOT DIAMETER | 0.273 INCHES MINIMUM AND 0.277 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.376 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2410 ASSN STD SINGLE TREATMENT RESPONSE THREADS |
| SURFACE TREATMENT | SILVER THREADS |
| TEMP RATING | 800.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNF |
| THREAD QUANTITY PER INCH | 32 |