The MIL-DTL-38999 III (D38999) harsh environment connectors feature wall mount receptacles, jam nut receptacles, and straight self-locking RFI plugs. Available in 9 shell sizes and 54 insert arrangements, they utilize M39029 contacts in various sizes for optimal connectivity. With shell materials including aluminum, stainless steel, and lightweight composite, and plating options like olive drab cadmium, nickel, and passivated stainless steel, these connectors offer versatility in demanding applications. RoHS-compliant and Boeing BACC-approved designs are also part of the selection, ensuring quality and compliance. Perfect for military and aerospace use, these connectors guarantee reliable performance in extreme conditions.