| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| THREAD DIRECTION | RIGHT-HAND |
| NUT STYLE | PLATE |
| MATERIAL | IRON ALLOY 660 OVERALL |
| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.437 INCHES |
| THREAD QUANTITY PER INCH | 20 |
| THREAD CLASS | 3B |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR |
| AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| HARDNESS RATING | 49.0 ROCKWELL C MAXIMUM |
| NUT LENGTH | 1.477 INCHES MAXIMUM |
| NUT HEIGHT | 0.504 INCHES MAXIMUM |
| PLATE THICKNESS | 0.115 INCHES MAXIMUM |
| PLATE WIDTH | 0.672 INCHES MINIMUM AND |
| 0.719 INCHES MAXIMUM |
| COUNTERBORE DIAMETER | 0.497 INCHES MINIMUM AND |
| 0.517 INCHES MAXIMUM FIRST END |
| LUBRICATION | DRY FILM LUBRICANT |
| MOUNTING HOLE ARRANGEMENT STYLE | 2 HOLES |
| MOUNTING HOLE DIAMETER | 0.161 INCHES MINIMUM AND |
| 0.166 INCHES MAXIMUM |
| DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER | 0.557 INCHES MINIMUM AND |
| 0.567 INCHES MAXIMUM |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH | 1.123 INCHES MINIMUM AND |
| 1.127 INCHES MAXIMUM |
| TEMP RATING | 450.0 DEG FAHRENHEIT NOMINAL |