Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number R6 1003 found under Gasket by Stewart And Stevenson Power Inc. The National Stock Number assigned to this part is 5330013125854, 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 R6 1003.