Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 330A21-2224-20 found under Washer Finishing by Airbus Industries. The National Stock Number assigned to this part is 5310142572172, and the Federal Supply Class is 5310 Nuts And Washers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 330A21-2224-20.