| US ARMY AVIATION AND MISSILE COMMAND | |
| NOT RATED | |
| COVER MOUNTING SCREW | |
| 8.500 INCHES NOMINAL | |
| 4.000 INCHES NOMINAL | |
| 0.500 INCHES | |
| HUB DRILLED AND TAPPED | |
| RIGID METALLIC THICKWALL | |
| RS AND RSM SERIES | |
| THREADED FASTENER | |
| 4 | |
| RECTANGULAR | |
| FLAT | |
| IRON | |
| RECTANGULAR/SQUARE | |
| LACQUER,ALUMINUM |
