8.750" outside diameter 20 thread quantity per inch 4.000 by 5.000 in. dia bolt center; corner bevel dimension 0.047 in. by 30 deg; raised surface with round counterbored aperture oxide surface treated unc thread series
Used on prat & whitney jet engine components f100--p-100;former name bearing. 165 x 225 x 35, no. 4; reidentification of part 4000185 after repair per SL236750