Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 873 044 003 found under Transfer Transmissi by Kelsey Hayes Company Inc. The National Stock Number assigned to this part is 2520014674771, 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 873 044 003.