The MIL-DTL-38999 Series I connectors feature a rugged design with up to 128 contacts in an environmentally sealed insert, suitable for harsh operating conditions. With an operating temperature range of -65 °C to 200 °C, these connectors offer reliability in extreme environments. Available in various shell sizes and insert arrangements, they come in aluminum shells with plating options such as gold, electroless nickel, and cadmium finishes. Designed for military specifications, these connectors ensure secure connectivity with their bayonet coupling and removable crimp contacts. Perfect for applications requiring durability and performance, they are ideal for military, aerospace, and industrial uses.