Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 56T17F278 found under Motor Alternating C by Marathon Electric Manufacturing. The National Stock Number assigned to this part is 6105011784707, 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 56T17F278.