Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 863-000239 found under Coupling Actuator Handwheel Valv by Guild Associates Inc. The National Stock Number assigned to this part is 4820015065868, 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 863-000239.