MIL-DTL-38999 III (D38999) harsh environment connectors are rugged and reliable solutions for demanding applications. Available in various shell sizes and insert arrangements, these connectors feature wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs. With M39029 contacts in sizes 22D, 20, 16, 12, 10 power, and 8 twinax, they offer versatile connectivity options. The connectors are constructed from durable materials such as aluminum, stainless steel, and lightweight composite, with plating choices including olive drab cadmium, nickel, black zinc nickel, and passivated stainless steel. RoHS-compliant and cadmium-free finishes are available, meeting environmental requirements. Designed for military and aerospace applications, as well as other harsh environments, these connectors ensure secure and efficient electrical connections.