| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| OVERALL HEIGHT | 0.655 INCHES MINIMUM AND 0.665 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5735 ASSN STD 1ST MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD SIZE | 0.500 INCHES |
| NUT STYLE | DOUBLE HEXAGON |
| PRECIOUS MATERIAL AND LOCATION | EXTERNAL SURFACE SILVER |
| PRECIOUS MATERIAL | SILVER |
| WASHER OUTSIDE DIAMETER | 0.985 INCHES MINIMUM AND 0.995 INCHES MAXIMUM |
| WASHER THICKNESS | 0.155 INCHES MINIMUM AND 0.175 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.618 INCHES MINIMUM AND 0.627 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS 2410 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | SILVER OVERALL |
| TEMP RATING | 1200.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNJF |
| THREAD QUANTITY PER INCH | 20 |