Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R0618-111 found under Parts Kit Valve by Eastern Aero Supply Inc. The National Stock Number assigned to this part is 4820014717873, 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 R0618-111.