Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number K0 00121 4459 found under Spacer Sleeve by Man Truck And Bus Ag. The National Stock Number assigned to this part is 5365121656878, 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 K0 00121 4459.