Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MDA62639-103 found under Duct Assy Air Condi by Eaton Corporation. The National Stock Number assigned to this part is 1560007894600, 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 MDA62639-103.