The MIL-DTL-38999 III (D38999) harsh environment connectors offer reliable connectivity in rugged conditions. This range includes wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs, available in various shell sizes and insert arrangements. Utilizing M39029 contacts in sizes 22D, 20, 16, 12, 10 power, and 8 twinax, these connectors ensure secure connections. With options in shell materials like aluminum, stainless steel, and lightweight composite, and plating choices such as olive drab cadmium, nickel, black zinc nickel, and passivated stainless steel, they cater to diverse needs. Featuring RoHS-compliant, cadmium-free finishes and Boeing BACC-approved designs, these connectors meet stringent standards. Ideal for military and aerospace applications, they are designed for durability in extreme environments.