Matl steel per ams 5645; 1.167 in. Min and 1.187 in. Max long; body 2.670 in. Min and 2.672 in. Max od; flange 2.892 in. Min and 2.896 in. Max od; 2 grooves 0.052 in. Min and 0.072 in. Max wide by 0.01 in. Min and 0.02 in. Max deep; bore 2.3885 in. Min and 2.3925 in. Max dia