Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AC9347-41 found under Valve Relief Pressure And Temper by Columbia Products. The National Stock Number assigned to this part is 4820001410555, 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 AC9347-41.