Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number X22440B5B found under Cage Valve by Emerson Electric Co. The National Stock Number assigned to this part is 4820010615112, 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 X22440B5B.