Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 391897 found under Elbow Flange To Tube by Edmunds Manufacturing. The National Stock Number assigned to this part is 4730008226937, 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 391897.