MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts within each insert. With environmental sealing and a wide operating temperature range of -65°C to 200°C, they ensure reliable performance in demanding conditions. Featuring various mounting options such as front and rear wall mount, jam nut, and box mount receptacles, these connectors cater to diverse installation needs. Available in aluminum shells with multiple plating options including cadmium-free finishes, they are suitable for military and industrial applications requiring rugged connectivity. Conforming to MIL-DTL-38999 II specifications, these circular plugs guarantee secure and efficient electrical connections, with gold-plated removable crimp contacts ensuring optimal conductivity and durability. With a straight plug shell style and keyway polarization, they offer easy and reliable mating, rated for 500 cycles. Meeting stringent environmental and performance standards, these connectors are ideal for aerospace, defense, and other mission-critical systems.