Abstract: A spray nozzle assembly includes a nozzle body having an internal fluid passageway. A stabilization vane is arranged in the internal fluid passageway. The stabilization vane has a cross-sectional shape in a plane perpendicular to a longitudinal axis of the stabilization vane. The stabilization vane is formed from a single, continuous piece of material that is insertable in the internal fluid passageway. The cross-sectional shape of the stabilization vane has a center section defining a center passage through the stabilization vane that is arranged in a center of the internal fluid passage. The center section being flanked by a first side section and a second side section. Each of the first and second side sections being open to the center passage at a respective inner portion.