| DISTANCE BETWEEN HOLE CENTERS | 20.555 INCHES MINIMUM AND 20.575 INCHES MAXIMUM |
| HEAT TREATMENT | H-32 STRAIN HARDENED |
| HOLE QUANTITY | 4 |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM B209 ASSN STD SINGLE MATERIAL RESPONSE |
| MATERIAL THICKNESS | 0.125 INCHES NOMINAL |
| MATERIAL | ALUMINUM ALLOY 5052 |
| MOUNTING HOLE TYPE | PLAIN |
| MOUNTING HOLE DIAMETER | 0.405 INCHES MINIMUM AND 0.412 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.86 INCHES MINIMUM AND 0.90 INCHES MAXIMUM |
| OVERALL LENGTH | 17.66 INCHES MINIMUM AND 17.72 INCHES MAXIMUM |
| OVERALL WIDTH | 21.79 INCHES MINIMUM AND 21.83 INCHES MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | BRACKET, 117 MOUNT, LOWER |
| SPECIAL FEATURES | BRACKET HAS (8) .391 INCH DIAMETER THRU HOLES IN THE CENTER SECTION. |
| STYLE DESIGNATOR | QUADRUPLE ANGLE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-DTL-5541, TYPE 1, CLASS 3 MIL SPEC SINGLE TREATMENT RESPONSE |
| SURFACE TREATMENT | CHROMATE |