Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number J5 1291 found under Seal Plain Encased by Long Airdox Co. The National Stock Number assigned to this part is 5330006410994, 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 J5 1291.