The MIL-DTL-38999 III (D38999) harsh environment connectors offer rugged performance for demanding applications. Available in various shell sizes and insert arrangements, they feature M39029 contacts in different sizes for versatile connectivity. With options for aluminum, stainless steel, and lightweight composite shells, as well as a range of plating choices including RoHS-compliant finishes, these connectors ensure reliability in diverse environments. The Series III connectors, such as wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs, are designed for durability and meet stringent military specifications. Suitable for aerospace, defense, and industrial uses, they provide secure and efficient electrical connections, even in extreme conditions.