Cres 17-4ph investment casting per ams 5343; tensile strength 150, 000 psi; passivated surface treatment; spring end 0.602 nom dia; hook end nom lg 0.480 x 0.240 nom wd; hook end nom hole diameter 0.313; hook end hole center to flat bearing surface 0.250 nom; lg nom 0.720; nom diameter of hole through lg is 0.170