Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number HI70475 found under Tubing Nonmetallic by Hanna Corp. The National Stock Number assigned to this part is 4710016462487, 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 HI70475.