Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number QB8147-1 found under Plug Diffuser Valve by Aero International Incorporated. The National Stock Number assigned to this part is 5120007139380, and the Federal Supply Class is 5120 Hand Tools Nonedged Nonpowered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like QB8147-1.