| MATERIAL | ALUMINUM ALLOY |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B209 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE |
| SURFACE TREATMENT | PAINT |
| STYLE DESIGNATOR | RECTANGULAR |
| DISTANCE FROM CENTER OF MOUNTING HOLE TO EDGE ALONG THE WIDTH | 0.68 INCHES NOMINAL |
| CENTER TO CENTER DISTANCE BETWEEN FIRST AND SECOND MOUNTING HOLES | 3.03 INCHES NOMINAL |
| BLOCK HEIGHT | 1.25 INCHES NOMINAL |
| DISTANCE FROM END TO FIRST MOUNTING HOLE CENTER | 3.442 INCHES NOMINAL |
| DISTANCE FROM END TO FIRST CLAMPING HOLE CENTER | 0.75 INCHES NOMINAL |
| CENTER TO CENTER DISTANCE BETWEEN FIRST AND SECOND CLAMPING HOLES | 2.125 INCHES NOMINAL |
| OVERALL LENGTH | 4.50 INCHES NOMINAL |
| OVERALL WIDTH | 4.37 INCHES NOMINAL |
| MOUNTING FACILITY | SLOT |
| MOUNTING HOLE DIAMETER | 0.625 INCHES NOMINAL |
| MOUNTING SLOT LENGTH | 1.00 INCHES NOMINAL |
| CLAMPING HOLE QUANTITY | 1 |
| CLAMPING HOLE DIAMETER | 1.375 INCHES NOMINAL SINGLE HOLE |
| SPECIAL FEATURES | ITEM IS LOWER HALF BLOCK FOR P/N 12441887 |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | MOUNTING BLOCK BUSHING |