Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number L641 45 found under Coupling Clamp Pipe by Rolls Royce Marine A S Dep. The National Stock Number assigned to this part is 4730013036462, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like L641 45.