Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number NMD-466 IT-4 found under Cartridge Check Val by Appleton Electric Ltd. The National Stock Number assigned to this part is 4820014202179, 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 NMD-466 IT-4.