MIL-DTL-38999 Series I connectors are designed for rugged applications, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for harsh environments. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for reliable connections. The high strength aluminum shells come with options for plating, including cadmium-free finishes. Offering front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, these connectors ensure secure and efficient electrical connections in military and industrial settings.