Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4273181 found under Armor Plate by Demmer Corp. The National Stock Number assigned to this part is 9515015389064, and the Federal Supply Class is 9515 Plate Sheet Strip Foil And Leaf. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4273181.