Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number DAA3121A654-020 found under Fairing Aircraft by Ahf Ducommun Inc. The National Stock Number assigned to this part is 1560014648209, and the Federal Supply Class is 1560 Airframe Structural Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like DAA3121A654-020.