Mil-h-6875 mil spec single treatment response overall
Matl steel 4130 or 4140,per qq-s-624;heat treat per mil-h-6875;finish 5.3.2.2 per mil-std-171;flange dia 1.250 in.;threaded hole thru flange 3/8-24 unf-2b;first step dia 0.840 in.;second step dia 0.980 in.;third step dia 0.700 in.;unthreaded hole thru third step 0.390 in. Dia;transverse hole 0.390in. Dia thru third step;0.285 in. Distance center line from second end
Mil-h-6875,cond h1075 mil spec single material response overall