Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AM421S4400-1022148 PIECE 41 found under Blade Propeller Ship by Ac Valve Inc. The National Stock Number assigned to this part is 2010012182030, and the Federal Supply Class is 2010 Ship And Boat Propulsion Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AM421S4400-1022148 PIECE 41.