This standard BS EN 3386:2012 Aerospace series. Rings retaining, radial mounting, steel, phosphated is classified in these ICS categories:
49.030.50 Washers and other locking elements
This European Standard defines the characteristics of radial mounting retaining rings, in steel, phosphated, for aerospace applications. These retaining rings are used only when EN 3384 cannot be used for installation problems. The phosphating restricts the use at temperatures not exceeding 200 °C.