Special Features
4340 steel is to be i.V.D. Aluminum coated, thickness on spline 0.0005 in. Max.; heat treated to 160, 000 psi tensile strength rc 36-40; flange end has four equally spaced mounting holes 0.257-0.261 in. Dia.; circle dia. Is 2.376 in.; side radius from flange center 1.0625 in.; flange thickness 0.120 in.; center hole dia. 0.405-0.410 in.; four holes 0.187-0.191 in. Dia. Are unequally spaced around center hole within a recessed area 1.450 in. Dia.; end opposite flange has outside dia. Of 1.855 in. With 24 tooth internal involute spline; minor dia. 1.438 in.; major dia. 1.629 in. Max.
