Microinch finish 32 aa on inside; six holes 0.173 in. Diameter through equally spaced on 2.218 in. Bolt circle; four holes no. 10-32 unf-3b tap 0.312 in. Dp, distances between in in. 2.687, 2.812, 2.375, 2.812; four holes through at ends of four prongs 0.257 in. Min, 0.262 in. Max dia; two holes no. 4-40unc-3b tap at ends of tabs on prongs at wider end; two no. 6-32unc-3b tap holes in one side
