Hermetic Seal (HSC) started out in 1945 manufacturing multiple pin headers that were used on Vacuum tubes in computers and communications equipment. These early products were made with cold rolled steel bodies and Nickel-Iron pins. Today’s product capabilities encompass a wide range of specialty metals, including Stainless steel, Kovar, Titanium, Inconel, Monel, Hastelloy, Nitronic, Paliney and Type K and N thermocouple materials and utilize sealing glasses that ensure long lasting functionality in a wide variety of harsh environments. They are designed for high precision high reliability applications such as airborne and ground based guidance and navigations systems, surgical instruments and the manufacture of semiconductors.