Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number LE438 57 found under Gridmember Coupling by Rolls Royce Marine A S Dep. The National Stock Number assigned to this part is 3010013040753, and the Federal Supply Class is 3010 Torque Converters And Speed Changers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like LE438 57.