| COUNTERBORE DIAMETER | 0.676 INCHES MINIMUM AND 0.686 INCHES MAXIMUM FLANGE |
| HARDNESS RATING | 32.0 ROCKWELL C MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| OVERALL HEIGHT | 0.630 INCHES MINIMUM AND 0.670 INCHES MAXIMUM |
| MATERIAL | STEEL COMP 302 OR STEEL COMP 321 WASHER |
| MATERIAL | STEEL NUT |
| NOMINAL THREAD SIZE | 0.562 INCHES |
| NUT COUNTERBORE DEPTH | 0.313 INCHES MINIMUM AND 0.332 INCHES MAXIMUM FLANGE |
| NUT HEIGHT | 0.165 INCHES MINIMUM |
| NUT STYLE | FLAT WITH TURNED BACK EDGE |
| WASHER OUTSIDE DIAMETER | 1.050 INCHES MINIMUM AND 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 WASHER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| SURFACE TREATMENT | CADMIUM AND CHROMATE NUT |
| SURFACE TREATMENT | PASSIVATE WASHER |
| TEMP RATING | 450.0 FAHRENHEIT NOMINAL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3B |
| THREAD SERIES | UNJF |
| THREAD QUANTITY PER INCH | 18 |