Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 5L4000-811 found under Control Assy Langin by Rockwell Collins Electromechanical. The National Stock Number assigned to this part is 1680006467737, and the Federal Supply Class is 1680 Miscellaneous Aircraft Accessories And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 5L4000-811.