[JSeery]

Yes, very tight. "tighten nut 356074-S to 200-220 foot pounds; then continue to the next castellation providing final resultant torque does not exceed 275 foot pounds.”

It is not the key that keeps the hub from rotating on the axle, it is the pressure on the taper from the nut. The tapers need to be very clean, smooth and dry when the hub is installed.