The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse installation needs. The connectors, compliant with military specification MIL-DTL-38999 II, come in aluminum shells with options for plating such as electroless nickel and cadmium finishes. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Ideal for aerospace, defense, and industrial applications, these connectors guarantee high performance and durability.