Material steel 4140 sub od8853 ty d, gr 3, cl a, alt qq-s-624, c4140, length 1.562 in., first end diameter 1.999 in., second end square all sides 2.625 in., second end 4 holes through 0.344 in. Diameter on 1.938 in. Bsc, 4 holes 5/16 -18 unc 3b, 0.531 in. Deep, csk 90.0 degrees t 0.344 in. Deep on 0.875 in. Bsc