Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number A-A-55057 TYPE A found under Plywood Construction by Federal Commercial Item Description. The National Stock Number assigned to this part is 5530001297833, and the Federal Supply Class is 5530 Plywood And Veneer. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like A-A-55057 TYPE A.