Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number CHI-99210 found under Sleeve Seal Seat by Fleck Bearing Co. The National Stock Number assigned to this part is 5365015732194, 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 CHI-99210.