Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 74A731222-2009 found under Door Access Aircraf by Mc Donnell Douglas Corp. The National Stock Number assigned to this part is 1560012568119, 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 74A731222-2009.