| DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER | 0.500 INCHES NOMINAL |
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH | 0.312 INCHES NOMINAL |
| COUNTERBORE DIAMETER | 0.317 INCHES MINIMUM FIRST END |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| LUBRICATION | DRY FILM LUBRICANT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MOUNTING HOLE ARRANGEMENT STYLE | 2 HOLES |
| MOUNTING HOLE DIAMETER | 0.130 INCHES MINIMUM AND 0.135 INCHES MAXIMUM |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| NUT COUNTERBORE DEPTH | 0.125 INCHES MINIMUM FIRST END |
| NUT HEIGHT | 0.388 INCHES MAXIMUM |
| NUT LENGTH | 1.396 INCHES MAXIMUM |
| NUT MOUNTING PROVISION | STRAIGHT HOLES |
| NUT STYLE | PLATE |
| PLATE THICKNESS | 0.040 INCHES NOMINAL |
| PLATE WIDTH | 0.650 INCHES MAXIMUM |
| REMOVABLE NUT MANUFACTURER CODE | 76301 |
| REMOVABLE NUT MANUFACTURER PART NUMBER | ST3M445C5M2 |
| SURFACE TREATMENT | NICKEL OR COPPER OR NICKEL AND COPPER NUT |
| SURFACE TREATMENT | PASSIVATE BASE |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES | UNIFIED NATIONAL JOINT FINE (UNJF) |