The MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With options for straight, RFI grounding, and standard plugs with a 90-degree cable clamp, these connectors cater to diverse connectivity needs. Compliant with military specification MIL-DTL-38999 II, they ensure reliability in demanding applications. Constructed with aluminum shells and offering multiple plating choices, including RoHS-certified cadmium-free finishes, these connectors provide durability and performance. Each connector is equipped with M39029 rear release crimp contacts, available in different sizes, ensuring secure and efficient connections. With a contact plating of gold, they guarantee excellent conductivity, while the socket contact style and bayonet mating type facilitate easy and quick installation. Suitable for environment-resistant box and through bulkhead mounting receptacles, these connectors are ideal for critical military and industrial applications.