This axial bearing washer serves as a raceway component for needle roller thrust assemblies, providing the flat bearing surface required on the housing or shaft side of the arrangement. It is manufactured to DIN 5405-3/ISO 303 and matched for use with AXK and K811 type thrust bearings, with a net mass of 25.7 g. Since the washer only supplies the running surface, it must be paired with a needle roller and cage assembly to form a complete axial bearing; it does not carry radial load on its own. Its flat, hardened surface allows axial loads to be transmitted with a low installation height, and correct alignment against the mating AXK or K811 assembly is required to maintain the intended raceway geometry during operation.