MIL-DTL-38999 Series I connectors, designed for harsh environments, feature up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliability in extreme conditions. Available in various mounting options including front and rear wall mount, as well as jam nut receptacles, these connectors ensure secure installations. Utilizing M39029 rear release crimp contacts, they guarantee efficient connectivity. Constructed with high strength aluminum shells and offering multiple plating options, such as gold, electroless nickel, and cadmium-free finishes, they provide durability and versatility. Meeting military specification MIL-DTL-38999 I, these circular connectors are ideal for demanding applications requiring rugged performance.