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
