Air-Lock designs, develops and manufactures hardware, including connectors and bearings and is a wholly owned subsidiary of David Clark Company. It offers a range of survival kits, oxygen systems, life rafts and chemical-biological protective systems. Its products include materials, such as conventional and exotic metals, thermoplastic and thermoset resins, composites, optical transparencies, coatings and elastomers. In addition, the company supports edge aviation and space programs. Air-Lock provides Body Seal Closure (BSC) spacesuits, Service and Cooling Umbilical (SCU) and Display and Control Module (DMC) multiple connectors. It also offers assistance for materials research and development and project engineering. Air-Lock maintains a location in Milford, Conn., and also provides tools, molds, gauges and fixtures.