Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number 47 0028 03 found under O Ring Sand Cap by North American Marine Jet. The National Stock Number assigned to this part is 5330001761100, 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 47 0028 03.