| COUNTERBORE DIAMETER | 0.410 INCHES MINIMUM AND 0.420 INCHES MAXIMUM NUT |
| COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL NUT |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| OVERALL HEIGHT | 0.670 INCHES MINIMUM AND 0.685 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5709 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | NICKEL ALLOY OVERALL |
| NOMINAL THREAD SIZE | 0.375 INCHES |
| NUT COUNTERBORE DEPTH | 0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM NUT |
| NUT STYLE | DOUBLE HEXAGON |
| WASHER OUTSIDE DIAMETER | 0.670 INCHES MINIMUM AND 0.680 INCHES MAXIMUM |
| WASHER THICKNESS | 0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM |
| TEMP RATING | 900.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |
| THREAD QUANTITY PER INCH | 24 |