About
Hermetic Seal Corporation

Hermetic Seal

Since founding the technology in 1945, Hermetic Seal Corporation has been a leading designer and manufacturer of hermetically sealed connectors, headers and feed thrus. Many of the worlds leading companies involved in the geophysical, nuclear, automotive, aerospace and defense companies depend on HSC for their hermetically sealed connectors, headers and feed thrus. Whether designed by our customers or our own experienced engineering personnel, HSC's custom products withstand the most severe environments imaginable: high pressure up to 65,000 psi; temperature ranges from –325° F to greater than 1000° F; and leak rates of 1 x 10 –11 cc/sec. helium at one atmosphere differential.

HSC is also a principal manufacturer of Qualified Products Listed (QPL) circular connectors to many of the military specifications. Our line is completed by a range of products that conform to the design and performance requirements of a broad range of other specs.

With a 33,000 sq. ft manufacturing plant located in Rosemead, California, Hermetic Seal is an integral part of HCC Industries, and together with its sister companies forms the largest independent hermetic sealing operation in the United States.

Our capabilities include:

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