CE WH PHG 250 1008 Copyright 2008 by Wurth 12 0304 Retaining Rings Metric Din 471 External Type Prefix 438 4386 4387 4388 4389 43810 43811 43812 43813 43819 43820 43822 43828 43835 43814 43815 43816 43817 43818 Retaining Rings Metric Din 472 Internal Type Prefix 439 43913 43914 43916 43922 43947 43926 43928