Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 8428790 found under Adapterstraightpipe To Tube by Electro Motive Diesel Inc. The National Stock Number assigned to this part is 4730016939519, and the Federal Supply Class is 4730 Hose Pipe Tube Lubrication And Railing Fittings. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 8428790.