1.526 porm 0.003 in. Lg, 1.440 in. W, with one hole 0.812 porm 0.005 in. Dia, three holes 0.430 in. Porm 0.002 in. Dia, three holes 0.845 in. Porm 0.002 in. Dia, and five holes 0.152 in. Porm 0.002 dia, countersink farside 60 degrees to 0.178 in. Dia, all holes unevenly spaced, matl al aly sheet, 0.093in. Thk, 2024-t3 per specification qq-a-250/4