The MIL-DTL-38999 III (D38999) harsh environment connectors offer reliable performance in demanding settings. Available in various shell sizes and insert arrangements, they feature M39029 contacts in sizes 22D, 20, 16, 12, 10 power, and 8 twinax. With options for aluminum, stainless steel, and lightweight composite shells, as well as plating choices like olive drab cadmium and passivated stainless steel, these connectors cater to diverse needs. They meet stringent military specifications, including Boeing BACC approval, and are designed for RoHS compliance. Ideal for applications requiring durability and high performance, these connectors ensure secure and efficient electrical connections in challenging environments.