Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number UR2-1210 found under Reducer Tube by Superior Valve Co. The National Stock Number assigned to this part is 4730011433439, 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 UR2-1210.