This axial bearing washer serves as a raceway component for axial needle roller and cage assemblies, providing a flat running surface for the rolling elements on either side of the assembly. AS140180 is manufactured to DIN 5405-3/ISO 303 and has a net mass of 73.5 g, matching the dimensional standard used for AXK and K811 series assemblies. Since the washer carries no integral rolling elements or seals, it must be paired with a corresponding axial needle roller and cage assembly to form a complete bearing arrangement. The flat, hardened surface accommodates axial loads while the mating assembly handles the rolling motion, and lubrication (grease or oil) must be applied according to the operating conditions of the assembled unit. No accuracy class or clearance value is specified for this washer beyond the referenced standard.