| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5646 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| NOMINAL THREAD SIZE | 0.5625 INCHES |
| NUT STYLE | HEXAGON |
| OVERALL HEIGHT | 0.535 INCHES NOMINAL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2510 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | SILVER OVERALL |
| SPECIAL FEATURES | TWO WIRE HOLES 0.050 TO 0.060 IN.DIA.,ONE EA LOCATED 180 DEG.ANGLE ON HEX POINTS |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 18 |
| THREAD SERIES | UNJF |
| WASHER OUTSIDE DIAMETER | 1.050 INCHES MINIMUM AND 1.054 INCHES MAXIMUM |
| WASHER THICKNESS | 0.208 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.803 INCHES MINIMUM AND 0.814 INCHES MAXIMUM |