Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X8227073-4.12 found under Restrictor Fluid Fl by Warner Robins Air Logistics Center. The National Stock Number assigned to this part is 4730013263201, 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 X8227073-4.12.