Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number GL-02393-GB01 ITEM 20 found under Gasket by Gorman Rupp Company The. The National Stock Number assigned to this part is 5330003990700, 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 GL-02393-GB01 ITEM 20.