Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 4065990189 found under Spacer Sleeve by Mercedes Benz Ag. The National Stock Number assigned to this part is 5365012449923, and the Federal Supply Class is 5365 Bushings Rings Shims And Spacers. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 4065990189.