Stein Seal Company is a Manufacturing Company engaged in the design, development, testing, and manufacturing of sophisticated mechanical shaft seals and precision-machined components used in the aerospace, nuclear, chemical, petrochemical, and marine industries.Surpassing our customers'​ expectations by setting the highest standards for design proficiency and originality, constantly investigating new materials and processes, and refining our ability to manufacture to rigorous tolerances has made us the premier supplier of complex mechanical seal systems and specialty machined components.