MIL-DTL-38999/24 III (D38999) connectors are designed for harsh environments, featuring wall mount and jam nut receptacles along with self-locking RFI plugs. With 9 shell sizes and 54 insert arrangements available, these connectors offer versatility for various applications. Constructed with durable materials such as aluminum, stainless steel, and lightweight composite, they ensure reliable performance in demanding conditions. The removable crimp contacts, plated with gold for enhanced conductivity, are rated for 500 mating cycles. Operating in temperatures ranging from -65°C to 200°C, these connectors provide excellent environmental resistance. The nickel-plated composite shell, along with other finish options, guarantees long-term durability. Boeing BACC-approved and available in RoHS-compliant versions, the D38999 Series III connectors are ideal for high-reliability applications.