steel,mil-c-24111,type 1,cond 3 overall; passivated,qq-p-35 overall; 0.8750 in. o/a dia by 0.5600 in. o/a lg; external thd 0.875-20 unef-2a by 0.3200 in. lg; internal thd 0.3125-24 unf-2b by 0.3200 in. lg; end opposite thd,0.8000 in. dia,counterbored 0.6900 in. dia by 0.2400 in. deep; 6 holes 0.1230 in. min,0.1280 in. max dia by 0.3200 in. deep on 0.5630 in. dia circle spaced 60.0 deg apart general characteristics item description