| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS-5525 ASSN STD 1ST MATERIAL RESPONSE OR AMS-5726 ASSN STD 2ND MATERIAL RESPONSE OR AMS-5731 ASSN STD 3RD MATERIAL RESPONSE OR AMS-5732 ASSN STD 4TH MATERIAL RESPONSE OR AMS-5737 ASSN STD 5TH MATERIAL RESPONSE CAP |
| 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 | NICKEL ALLOY 718 NUT |
| MATERIAL | IRON ALLOY 660 CAP |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| NUT COUNTERBORE DEPTH | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM NUT |
| NUT HEIGHT | 0.625 INCHES MINIMUM AND 0.645 INCHES MAXIMUM |
| NUT LENGTH | 1.027 INCHES MINIMUM AND 1.047 INCHES MAXIMUM |
| NUT STYLE | PLATE |
| PLATE THICKNESS | 0.050 INCHES MINIMUM AND 0.070 INCHES MAXIMUM |
| PLATE WIDTH | 0.797 INCHES MINIMUM AND 0.817 INCHES MAXIMUM |
| SPECIAL FEATURES | NUT, PLATE-CAP HEIGHT .825 POM .010, CAP O.D. .550 POM .010, BASE PLATETOP LT CORNER TO RT SIDE LOWER CORNER 1.05 POM .010 |
| SURFACE TREATMENT | PASSIVATE CAP |
| SURFACE TREATMENT | PASSIVATE NUT |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 3B |
| THREAD SERIES | UNJF |
| THREAD QUANTITY PER INCH | 28 |