MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with an operating temperature range from -65 °C to 200 °C. Available in various mounting options including front wall, rear wall, and jam nut receptacles, they ensure secure connections. With 52 insert arrangements and M39029 rear release crimp contacts, these connectors offer versatility for different applications. Constructed with high strength aluminum shells and various plating options such as cadmium and nickel, they guarantee durability and reliability. Suitable for military and industrial use, these connectors meet stringent performance standards for conductivity and environmental resistance.