0.406" hole diameter 16.500" outside diameter 12 bolt hole quantity 3 additionalholes 0.406 in. dia. equally spaced on same bolt circle as otherholes, centered between other holes circular
0.281" hole diameter 10.375" overall length 3.750" overall width 10 bolt hole quantity aperture is divided into 2 parts by 1.000 in. strip of asbestos located 2.000in. from 1 end of aperture non-circular