| BEARING SURFACE FINISH | 125.0 MICROINCHES |
| COUNTERBORE DIAMETER | 0.760 INCHES MINIMUM AND 0.770 INCHES MAXIMUM NUT |
| OVERALL HEIGHT | 0.792 INCHES MINIMUM AND 0.822 INCHES MAXIMUM |
| MATERIAL | IRON ALLOY 660 NUT |
| MATERIAL | STEEL COMP 302 OR STEEL COMP 321 WASHER |
| NOMINAL THREAD SIZE | 0.625 INCHES |
| NUT COUNTERBORE DEPTH | 0.387 INCHES MINIMUM AND 0.407 INCHES MAXIMUM NUT |
| NUT STYLE | FLAT WITH TURNED BACK EDGE |
| SPECIAL FEATURES | SIX SLOTS EQUALLY SPACED 0.179 IN. MIN AND 0.189 IN. MAX DEEP BY 0.157 IN. MIN AND 0.187 IN. MAX WIDE |
| WASHER OUTSIDE DIAMETER | 1.194 INCHES MINIMUM AND 1.224 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.990 INCHES MINIMUM AND 1.002 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| TEMP RATING | 450.0 FAHRENHEIT MAXIMUM |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNJF |
| THREAD QUANTITY PER INCH | 18 |