Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L492 80 found under Oil Pump Assembly Engine by Rolls Royce Marine A S Dep. The National Stock Number assigned to this part is 2815013036423, and the Federal Supply Class is 2815 Diesel Engines And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like L492 80.