Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 243-20020-02 found under Gasket Assortment by Ilc Dover Lp. The National Stock Number assigned to this part is 5330013153620, 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 243-20020-02.