Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number XB1024FL4A found under Regulator Thermosta by Emerson Electric Co. The National Stock Number assigned to this part is 4820000363764, 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 XB1024FL4A.