| COUNTERBORE DIAMETER | 0.254 INCHES NOMINAL BASE |
| LOCKING FEATURE | FREE-RUNNING ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT COUNTERBORE DEPTH | 0.036 INCHES NOMINAL BASE |
| NUT HEIGHT | 0.253 INCHES NOMINAL |
| NUT LENGTH | 0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM |
| NUT STYLE | PLATE |
| PLATE WIDTH | 0.395 INCHES MINIMUM AND 0.405 INCHES MAXIMUM |
| PLATE THICKNESS | 0.040 INCHES MINIMUM AND 0.052 INCHES MAXIMUM |
| SPECIFICATION/STANDARD DATA | 80205-NAS1794 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416,TYPE 2,CLASS2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SERIES | UNJF |
| THREAD QUANTITY PER INCH | 28 |