| 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 | NICKEL ALLOY 718 NUT |
| MATERIAL | IRON ALLOY 660 BASE |
| MATERIAL | STEEL COMP 302 CLIP |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT COUNTERBORE DEPTH | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM NUT |
| NUT HEIGHT | 0.507 INCHES MINIMUM AND 0.527 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 DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3B |
| THREAD SERIES | UNJF |
| THREAD QUANTITY PER INCH | 28 |