Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number AV2321000 found under Positioner Valve by Abb Inc. The National Stock Number assigned to this part is 4810016331479, and the Federal Supply Class is 4810 Valves Powered. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like AV2321000.