Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R01-01F-7FF found under Repair Kitvalve by Hy Grade Valve Inc. The National Stock Number assigned to this part is 4820016756752, and the Federal Supply Class is 4820 Valves Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like R01-01F-7FF.