Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 42-15809-1 found under Tube Drive Shaft by Mechanics Division Of Borg Warner. The National Stock Number assigned to this part is 2520014926818, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 42-15809-1.