3.905" hole diameter 4.725" outside diameter 0.031" material thickness outside diameter of washer has a 0.452 in. long lip 90 deg.from flat surface internal key
0.880" hole diameter 1.640" outside diameter 0.060" material thickness two key lugs are raised 0.061 in. min, 0.071 in. max above washer face; spaced diametrically on radial centerline bisecting external key; both keys are 0.137 in. wide min, 0.147 in. wide max; outer edges 1.150 in. nom apart; inner edges 0.782 in. min, 0.802 in. max apart; tensile strength 180000 to 200000 psi cadmium surface treated
0.510" hole diameter 0.875" outside diameter 0.125" material thickness 45 deg centerline to edge of key, 2 places; 0.030 in. min 0.040 in. max radius inside bottom of key, 2 places; 0.030 in. radius round bottom of key, 2 places
2.634" hole diameter 3.812" outside diameter 0.219" material thickness fourteen holes 0.359 in. dia equally spaced on same bolt circle, bolt holes must be 6 deg off center; angle 25 deg between first to second bolt hole key
