| HARDNESS RATING | 24.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM |
| NOMINAL THREAD SIZE | 0.5000 INCHES |
| NUT STYLE | DOUBLE HEXAGON |
| OVERALL HEIGHT | 0.565 INCHES MINIMUM AND 0.575 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 7251 NATIONAL STD SINGLE MATERIAL RESPONSE OR AMS 5737 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| PRECIOUS MATERIAL | SILVER |
| SPECIAL FEATURES | SILVER PLATED PER AMS 2411 |
| WASHER OUTSIDE DIAMETER | 0.786 INCHES MAXIMUM |
| WASHER THICKNESS | 0.100 INCHES MINIMUM |
| WIDTH ACROSS FLATS | 0.618 INCHES MINIMUM AND 0.628 INCHES MAXIMUM |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES | UNJF |