The MIL-DTL-38999 III (D38999) harsh environment connectors offer rugged reliability for demanding applications. 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, along with a range of plating choices including olive drab cadmium and passivated stainless steel, these connectors ensure durability in diverse conditions. RoHS-compliant and Boeing BACC-approved variants are also available, making them suitable for a wide range of military and aerospace applications.