Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4N4040 found under Cartridge Assembly by Compagnia Generale Trattori Spa. The National Stock Number assigned to this part is 2950011210598, and the Federal Supply Class is 2950 Turbosupercharger And Components. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4N4040.