MIL-DTL-38999/26 Series III connectors, also known as D38999, are designed for harsh environments, featuring wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs. With 9 shell sizes and 54 insert arrangements available, these connectors offer versatility for various applications. Utilizing M39029 contacts in sizes 22D, 20, 16, 12, 10 power, and 8 twinax, they ensure reliable electrical connections. Constructed from aluminum, stainless steel, or lightweight composite, with plating options including olive drab cadmium and nickel, these connectors are durable and corrosion-resistant. Suitable for military and aerospace use, the MIL-DTL-38999/26 connectors meet stringent performance standards for conductivity, environmental resistance, and service life, making them ideal for mission-critical applications.