ike spray fittings, spray nozzle fittings convert mist into a wetter spray. Whenever the required mist flow exceeds the capacity of the maximum spray fitting size, spray nozzle fittings are used. Spray nozzle fittings contain from 1 to 14 flow holes. Each hole passes the same amount of mist as the largest spray fitting. One end threaded fittings are usually installed from inside a very large bearing housing and have a tightening slot on the opposite end. Fittings are brass.