Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 3 4 - KX-194 found under Piston Valve by Gould J D Co Inc. The National Stock Number assigned to this part is 4810014570187, 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 4 - KX-194.