Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 1004A8020 found under Cooler Fluid Transmission by Kaitlin Corp. The National Stock Number assigned to this part is 2520011121013, and the Federal Supply Class is 2520 Vehicular Power Transmission Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 1004A8020.