Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N203-2002 found under Sleeve Seal Coupler by Nixco Mfg Co. The National Stock Number assigned to this part is 5330014482921, 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 N203-2002.