Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3-8B3-21REPAIR KIT BUNA-N found under Parts Kit Solenoid Valve by Gould J D Co Inc. The National Stock Number assigned to this part is 4810010232718, 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 3-8B3-21REPAIR KIT BUNA-N.