The MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various configurations like front and rear wall mount, as well as jam nut receptacles, they offer reliable connectivity. Compliant with military specification MIL-DTL-38999 I, these circular connectors come in high-strength aluminum shells with multiple plating options including cadmium-free finishes. Utilizing M39029 rear release crimp contacts, they ensure secure connections in applications requiring durability and performance. With a wide range of shell sizes and insert arrangements, these connectors are suitable for diverse industrial and military use cases.