Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number E3-6C found under Elbow Pipe To Tube by Kerotest Manufacturing Corp. The National Stock Number assigned to this part is 4730002507922, 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 E3-6C.