Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number MAT318ITEM13 found under Seal Plain Encased by Jered Brown Bros Inc. The National Stock Number assigned to this part is 5330001541863, 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 MAT318ITEM13.