copper alloy; 2.500 in. o/a lg; 1.470 in. od; 0.875 in. dia bore; w2 flanges 1.470 in. dia,0.250 in. lg,4 holes in between flanges 0.375 in dia,90 deg apart,also 2 locking holes 0.125 in. dia,0.187 in. lg,180 deg apart general characteristics item description