Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TUBE4X1 4X20 found under Tube Structural by Hi Tech Metals Inc. The National Stock Number assigned to this part is 4710014337115, and the Federal Supply Class is 4710 Pipe Tube And Rigid Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like TUBE4X1 4X20.