| COMPONENT QUANTITY | 2 |
| CROSS-SECTIONAL THICKNESS | 0.375 INCHES NOMINAL |
| LENGTH | 5.230 INCHES MINIMUM AND 5.290 INCHES MAXIMUM |
| MATERIAL | ALUMINUM ALLOY 6061, TYPE 6 |
| MOUNTING HOLE DIAMETER | |
| MOUNTING HOLE QUANTITY | 4 |
| MOUNTING HOLE TYPE | PLAIN AND THRU HOLE |
| OVERALL HEIGHT | 1.375 INCHES NOMINAL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BLOCK, MOUNT |
| SCREW THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |
| SHAPE | OCTAGON |
| SPECIAL FEATURES | CENTER MOUNTING LUG IS THREADED WITH THREADED CHARACTORS PROVIDED IN ADDTION TO USMC STOCK NUMBER 9999070002906 HAS BEEN PHRASE CODED Z TO THIS NSN |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD SIZE | 0.375-16 |
| WIDTH | 3.990 INCHES MINIMUM AND 4.000 INCHES MAXIMUM |