Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3111591 found under Elbow Tube by Embraer Aviation International. The National Stock Number assigned to this part is 4730005413168, 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 3111591.