Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 449B1 found under Box Shipping by Erie Engineered Products Inc. The National Stock Number assigned to this part is 8115007300391, and the Federal Supply Class is 8115 Boxes Cartons And Crates. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 449B1.