DTS26F11-35SN is a MIL-DTL-38999 Series III subminiature connector insert designed for rugged, harsh environment applications in aerospace, defense, and marine industries. The F11 insert configuration provides 11 contacts with environmentally sealed design and scoop-proof features for reliable performance. This connector supports threaded 360° turn coupling mechanism with shell materials available in stainless steel, aluminum, or composite, and offers multiple plating options including olive drab cadmium, electroless nickel, and nickel PTFE finishes. The insert is engineered for EMI control with spring fingers and is available in hermetic and filter versions to meet demanding operational requirements. Applications include aerospace systems, defense equipment, and marine platforms where environmental sealing and connector reliability are critical.