| BEARING SURFACE TYPE | CHAMFERED |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| NUT HEIGHT | 0.250 INCHES MAXIMUM |
| NUT STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | TEMPER 6 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| MATERIAL | ALUMINUM ALLOY 2014 OR ALUMINUM ALLOY 2024 OVERALL |
| NOMINAL THREAD SIZE | 0.164 INCHES |
| THREAD SERIES | UNJC |
| THREAD QUANTITY PER INCH | 32 |
| WIDTH ACROSS FLATS | 0.334 INCHES MINIMUM AND 0.346 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS1021 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-C-5541 MIL SPEC 1ST TREATMENT RESPONSE OR MIL-A-8625 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | OXIDE FILM OR ANODIZE OVERALL |
| TEMP RATING | 250.0 FAHRENHEIT NOMINAL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |