Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number RP70-4818 found under Tubing Nonmetallic by Siemens Water Technologies Corp. The National Stock Number assigned to this part is 4720004857017, and the Federal Supply Class is 4720 Hose And Flexible Tubing. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like RP70-4818.