MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, ideal for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various configurations including front and rear wall mount receptacles, they offer reliable RFI grounding. With 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells and offered in multiple plating options such as cadmium and nickel, they ensure durability and performance. These connectors, compliant with MIL-DTL-38999 I specifications, are suitable for applications requiring rugged and reliable electrical connections in demanding environments.