Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 404-55-1-106D2 found under Manifold Economizer by Foster Wheeler North America Corp. The National Stock Number assigned to this part is 4410006004469, and the Federal Supply Class is . Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 404-55-1-106D2.