Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 17020-2189 found under Gasket by Carter Hoffmann Corp. The National Stock Number assigned to this part is 5330016052803, and the Federal Supply Class is 5330 Packing And Gasket Materials. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like 17020-2189.