Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number KC004554 found under Regulator Thermostatic Temperatu by Nakakita Seisakusho Co Ltd. The National Stock Number assigned to this part is 4820014289781, 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 KC004554.