Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 12HW42H found under Air Conditioner by Fedders North America Inc. The National Stock Number assigned to this part is 4120012559898, and the Federal Supply Class is 4120 Air Conditioning Equipment. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 12HW42H.