Hermetic Seal (AMETEK)

Hermetic Seal, known as HSC, is a manufacturer of hermetically sealed interconnect products based in Rosemead, California. It was founded in 1945, began as HCC Industries and joined AMETEK in 2005. It now sits within AMETEK Engineered Interconnect and Packaging (EIP). The company specializes in glass-to-metal sealed interconnects, both standard and highly specialized, and works with OEMs on custom designs where standard connectors do not fit the required tolerances.

Products

• Custom hermetic interconnects, including Micro-D and D-subminiature connectors
• MIL-SPEC hermetic circular connectors, covering MIL-DTL-38999, MIL-DTL-26482, MIL-DTL-83723 and MIL-DTL-26500
• Extreme temperature hermetic connectors and aluminum (AlumiSeal) connectors
• High-pressure, high-temperature (HPHT) bulkhead connectors
• Ruggedized connectors that combine glass seals with PEEK molding
• Hermetic terminals and end seals, including battery and capacitor seals and single seals
• Subsea connectors and penetrators: dry mate, wet mate and pressure balanced oil filled types

Capabilities and testing

• Design, materials selection, glass pressing and plating, all described on the website
• Chemical processing facility accredited under Nadcap for precious metal plating, with a Nadcap chemical processing audit certificate shown on its quality page
• In-house laboratory for mechanical, electrical, thermal and environmental tests, including helium leak detection, high pressure testing up to 37,500 psi at 260 degrees C, thermal shock and cycling, insulation resistance and salt spray

History

The company's history page records that in 1946 it worked with Texas Instruments on glass-to-metal seal bases for vacuum tubes, and that by 1950 it was among the first businesses supplying interconnect components for vacuum tubes used in manned and unmanned space missions. The website also reports connectors engineered for NASA's Artemis II mission.

Markets served

Its website lists aerospace (including eVTOL applications), defense, space, energy and medical devices, and mentions geophysical and nuclear customers.

Company facts

• Founded in 1945; part of AMETEK since 2005
• Engineering Center of Excellence at the Rosemead site
• Office hours Monday to Friday, 8 a.m. to 5 p.m.