...that goes into the pressure side of the power steering pump to the pressure line? I need the inverted flare fitting. My rebuilt pump came with the oring fitting. My local boneyard are out of hydroboost trucks.

 

The fitting I think your talking about should be the same on a truck without hydroboost brakes, that fitting has the pressure relief spring behind it and should be the same as many other Ford vehicles. So just pull one from another vehicle.