Matl aluminum alloy, 2024-t351; finish chemical film, mil-c-5541; 0.350 in. O/a dia; 0.080 in. O/a thk; one 0.062 in. Diameter hole through centrally located; two 0.067 in. Diameter holes through with countersink to 0.135 in. Diameter irregularly spaced; one 0.094 in. Diameter hole through irregularly spaced
