A preswirler for a gas turbine engine diaphragm assembly is disclosed herein. In embodiments, the preswirler includes an outer ring and an inner ring. The outer ring includes an outer ring face, a first contact protrusion, and a second contact protrusion. The first and second contact protrusions are spaced apart and extend from an outer body portion at the outer ring face. The inner ring is located inward from the outer ring. The inner ring includes an inner ring face and a third contact protrusion. The third contact protrusion extends in from an inner body portion and at the inner ring face.