| COUNTERBORE DIAMETER | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM BASE |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE BASE |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5596 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5597 ASSN STD 2ND MATERIAL RESPONSE OR AMS 5662 ASSN STD 3RD MATERIAL RESPONSE OR AMS 5663 ASSN STD 4TH MATERIAL RESPONSE OR AMS 5664 ASSN STD 5TH MATERIAL RESPONSE NUT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5688 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5866 ASSN STD 2ND MATERIAL RESPONSE CLIP |
| MATERIAL | IRON ALLOY 660 BASE |
| MATERIAL | NICKEL ALLOY 718 NUT |
| MATERIAL | STEEL COMP 302 CLIP |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT COUNTERBORE DEPTH | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM NUT |
| NUT HEIGHT | 0.632 INCHES MINIMUM AND 0.652 INCHES MAXIMUM |
| NUT LENGTH | 1.032 INCHES MINIMUM AND 1.052 INCHES MAXIMUM |
| NUT STYLE | PLATE |
| PLATE THICKNESS | 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| PLATE WIDTH | 0.640 INCHES MINIMUM AND 0.660 INCHES MAXIMUM |
| SURFACE TREATMENT | PASSIVATE BASE |
| SURFACE TREATMENT | PASSIVATE CLIP |
| SURFACE TREATMENT | PASSIVATE NUT |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |