This S150 B-LINE 1-1/2-INCH OIL-TIGHT HOLE SEAL FOR TYPES 3R, 4, 12, OR 13 is a seal/gasket in industrial equipment. It prevents leakage at a mechanical joint or rotating shaft, maintaining pressure and cleanliness within the assembly. It is commonly in pumps, cylinders, gearboxes, and other fluid-containing equipment.
