THIS LISTING IS FOR 1 PIECE - 2.625" X 3.75" X 0.5" INCH OIL SEAL SC, SIMILAR NATIONAL SEAL INTERCHANGE: 415149, 415149V, 455149, 475149, 475149N, 485149, The SC profile is a shaft seal composed of a single metal cage with a rubber coating and a primary sealing lip with integrated spring, FACTORY NEW!