The MIL-DTL-38999 Series I connectors feature up to 128 contacts enclosed in a sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, as well as jam nut receptacles, these connectors offer versatility in applications. Compliant with military specification MIL-DTL-38999 I, they ensure reliability in demanding conditions. With 52 insert arrangements and M39029 rear release crimp contacts, they cater to diverse connectivity needs. Constructed with high-strength aluminum shells and offering multiple plating options, such as cadmium and nickel, they provide durability and corrosion resistance. Ideal for use in military and aerospace applications, these connectors guarantee secure and efficient electrical connections in critical environments.