Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number TJLE1800HW found under Valve Expansion by Emerson Electric Co. The National Stock Number assigned to this part is 4820008440975, 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 TJLE1800HW.