The MIL-DTL-38999/20 (D38999) III connectors, designated as SKU D38999/20ZE26BB, are vital components designed for harsh environmental conditions. Featuring a durable construction, these connectors come in various configurations including wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs. With 9 shell sizes and 54 insert arrangements available, they offer versatility for different applications. Utilizing M39029 contacts in sizes 22D, 20, 16, 12, 10 power, and 8 twinax, these connectors ensure reliable electrical connections. Constructed from high-quality materials such as aluminum, stainless steel, and lightweight composite, they guarantee longevity even in demanding environments. The connectors also come with a range of plating options including olive drab cadmium, nickel, black zinc nickel, and passivated stainless steel, catering to various needs. With RoHS-compliant and cadmium-free finishes available, they meet environmental regulations. Approved for use in Boeing BACC designs, these connectors are trusted for their quality and performance in aerospace and other industries.