| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | ALUMINUM ALLOY 2014 OR |
| ALUMINUM ALLOY 2017 OR |
| ALUMINUM ALLOY 2024 OR |
| ALUMINUM ALLOY 7075 NUT |
| NUT STYLE | HEXAGON |
| LOCKING FEATURE | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| BEARING SURFACE TYPE | CHAMFERED OR |
| WASHER FACED |
| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3B |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-A-200/2,T6 FED SPEC 1ST MATERIAL RESPONSE OR |
| QQ-A-225/4,T4 FED SPEC 2ND MATERIAL RESPONSE OR |
| QQ-A-225/6,T6 FED SPEC 3RD MATERIAL RESPONSE OR |
| QQ-A-200/11,T6 FED SPEC 4TH MATERIAL RESPONSE NUT |
| SURFACE TREATMENT | ANODIZE OR |
| CHROMATE OVERALL EXCEPT INSERT |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-A-8625 MIL SPEC 1ST TREATMENT RESPONSE OR |
| MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| NUT HEIGHT | 0.266 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.492 INCHES MINIMUM AND |
| 0.502 INCHES MAXIMUM |
| COUNTERSINK ANGLE | 88.0 DEGREES MINIMUM NUT |
| LUBRICATION | SOLUBLE LUBRICANT |
| TEMP RATING | 250.0 DEG FAHRENHEIT MAXIMUM |
| BEARING SURFACE FINISH | 125.0 MICROINCHES |