Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 431E 8IN found under Elbow Pipe by Crane Company. The National Stock Number assigned to this part is 4730008259912, 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 431E 8IN.