Your sprocket is probably ok being that the sprocket is probably some kind of heat treated/tough steel and the hub shell is most likely alloy so its unlikely the threads on the sprocket are damaged, but clean it up and check just incase, and check that it fits your new hubs properly before fitting it, if not just get a new sprocket.
Your sprocket is probably ok being that the sprocket is probably some kind of heat treated/tough steel and the hub shell is most likely alloy so its unlikely the threads on the sprocket are damaged, but clean it up and check just incase, and check that it fits your new hubs properly before fitting it, if not just get a new sprocket.