MIL-DTL-38999 Series I connectors feature up to 128 contacts housed in an environmentally sealed insert, designed for harsh environments with an operating temperature range from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, these connectors offer front and rear wall mount as well as jam nut receptacles, ensuring versatile connectivity options. Utilizing M39029 rear release crimp contacts, they guarantee reliable performance, with plating choices including cadmium-free finishes. Constructed with high-strength aluminum shells, they are resilient and durable, meeting military specification MIL-DTL-38999 I standards for quality and performance. Suitable for a wide range of applications, these connectors provide secure and efficient electrical connections in demanding environments.