0.2500" first hole diameter 1.2450" overall length four 0.250 in. dia. holes thru flange, counterbored 0.406 in. dia. by 0.203 in. deep, equally spaced on 1.848 in. dia. bolt circle 22c solid, external flange one end
0.0610" first hole diameter 0.6150" overall length od ground to 0.7490 in. min, 0.7500 in. max dia, 0.0450 in. min, 0.0750 in. max lg one end 17c solid, plain, no outside flanges