Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N3-12275 PIECE 493 found under Gasket by Diamond Power International Inc. The National Stock Number assigned to this part is 5330012206157, 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 N3-12275 PIECE 493.