Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number S4008574-1 found under Support Assembly Pilot Seat by Boeing Company The. The National Stock Number assigned to this part is 1680005211791, 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 S4008574-1.