Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 163-4C03-913L found under End Bell Electrical by Mpc Products Corporation. The National Stock Number assigned to this part is 6105013256304, and the Federal Supply Class is 6105 Motors Electrical. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 163-4C03-913L.