Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MARK 3 PIECE 68 found under Seal Plain Encased by Short Thomas A Co. The National Stock Number assigned to this part is 5330014295033, 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 MARK 3 PIECE 68.