This washer serves as the housing raceway for axial needle roller and cage assemblies, providing a flat running surface for the rolling elements. It is manufactured to DIN 5405-3/ISO 303 and is designed for use with AXK and K811 needle roller assemblies. Net mass of the washer is 14.0 g. The AS5070 pairs with the corresponding axial needle roller and cage assembly to form a complete thrust bearing arrangement, keeping axial height low compared to a solid thrust bearing. As a separate raceway, it allows the assembly to be mounted directly against a shaft shoulder or housing face, with the mating surface hardened and ground to accept direct rolling contact from the needle rollers.