Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 2381 found under Plate Base Tower Su by Upright Inc. The National Stock Number assigned to this part is 5445001837703, and the Federal Supply Class is 5445 Prefabricated Tower Structures. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 2381.