| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 4340 OR |
| STEEL COMP 8740 NUT |
| STEEL COMP 1050 WASHER |
| SURFACE TREATMENT | CADMIUM AND |
| CHROMATE NUT |
| CADMIUM AND |
| CHROMATE WASHER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE NUT |
| QQ-P-416 TYPE 2 CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE WASHER |
| HARDNESS RATING | 36.0 ROCKWELL C MINIMUM AND |
| 40.0 ROCKWELL C MAXIMUM |
| NUT STYLE | FLAT WITH TURNED UP EDGE |
| WASHER OUTSIDE DIAMETER | 0.380 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.223 INCHES MINIMUM AND |
| 0.243 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.213 INCHES MINIMUM AND |
| 0.221 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| NUT COUNTERBORE DEPTH | 0.072 INCHES MINIMUM AND |
| 0.087 INCHES MAXIMUM NUT |
| COUNTERBORE DIAMETER | 0.211 INCHES MINIMUM AND |
| 0.221 INCHES MAXIMUM NUT |
| TEMP RATING | 450.0 DEG FAHRENHEIT MAXIMUM |
| SPECIAL FEATURES | WASHER ROCKWELL C SCALE 40 MIN AND ROCKWELL C SCALE 45 MAX |
| SPECIFICATION/STANDARD DATA | 80205-NAS1726 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| BEARING SURFACE FINISH | 125.0 MICROINCHES |