... style of mechanical seal, tungsten carbide faces, ceramic to carbon face, silicon to tungsten face and silicon carbide faces, also supply packings ... for your confirmation with us when inquiry: Seal, Mechanical (Tungsten carbide faces), P/N: 22451-1, 648414308 Seal, Mechanical ( ... Seal, Mechanical (silicon to tungsten face), P/N: 22451-3, 648414357 Seal, Mechanical (silicon carbide faces), P/N: 22451- ...