"STEEL,4130,MIL-T-6736,0.750 IN. OD,0.584 IN. ID,6.500 IN. LG,2 HOLES IN LINE 2 PLACES,0.190 IN. MIN,0.193 IN. MAX DIA,0.620 IN. FROM 1ST END,0.310 IN. FROM 2ND END,1ST END NOTCHED 2 PLACES 180 DEG APART,0.073 IN. W,0.063 IN. DEEP,2ND END COUNTER BORED 3.950 IN. DEEP,0.636 DIA"