MIL-DTL-38999/26 (D38999) Series III connectors are designed for harsh environments, featuring wall mount and jam nut receptacles along with straight self-locking RFI plugs. Available in 9 shell sizes and 54 insert arrangements, these connectors accommodate M39029 contacts in various sizes for optimal performance. Constructed with durable shell materials such as aluminum, stainless steel, and lightweight composite, they offer versatility for different applications. With a wide range of plating options including olive drab cadmium and nickel, these connectors ensure reliable conductivity and corrosion resistance. Meeting stringent military specifications and RoHS compliance, they are suitable for high-reliability applications in aerospace, defense, and other industries.