"STEEL 17-4PH,3.820 IN. LG,1.743 IN. MIN,1.746 IN. MAX DIA,1ST END THD,1-3/4-12 UN-3A,1.000 IN. LG PER MIL-S-7742,2ND END PLAIN INTERNALLY RELIEVED 2.220 IN. DEEP,1.000 IN. ID,1 EA 0.780 IN. MIN,0.786 IN. MAX DIA PERPENDICULAR HOLE THROUGH 1.150 IN. FROM 2ND END"