The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed and have a wide operating temperature range from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Constructed with high strength aluminum shells and offering multiple plating options, including RoHS certified finishes, they ensure reliable performance in demanding applications. The connector family includes front and rear wall mount, jam nut receptacles, and RFI grounding plugs, all meeting stringent MIL-DTL-38999 I military specifications. Suitable for a wide range of industries, these connectors provide durability, conductivity, and ingress protection for critical electrical connections.