| COUNTERBORE DIAMETER | 0.676 INCHES MINIMUM AND 0.686 INCHES MAXIMUM FIRST END |
| NUT COUNTERBORE DEPTH | 0.312 INCHES MINIMUM AND 0.332 INCHES MAXIMUM FIRST END |
| NUT HEIGHT | 0.378 INCHES NOMINAL |
| NUT STYLE | FLAT WITH TURNED BACK EDGE |
| OVERALL HEIGHT | 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE WASHER |
| MATERIAL | IRON ALLOY 660 NUT |
| MATERIAL | STEEL COMP 302 WASHER |
| NOMINAL THREAD SIZE | 0.562 INCHES |
| WASHER OUTSIDE DIAMETER | 1.080 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE 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 |