This standard defines the characteristics of axial mounting internal retaining rings, in steel, phosphated, for aerospace applications. The phosphating restricts the use at temperatures not exceeding 200 ℃.
EN 3382:2012 Referenced Document
EN 2424 Aerospace series - Marking of aerospace products
EN 3380 Aerospace series - Rings, retaining - Technical specification
EN 3425 Aerospace series - Groove dimensions for axial mouting internal type retaining rings