MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. These connectors, meeting military specification MIL-DTL-38999 I, are made of high-strength aluminum with various plating options, including cadmium-free finishes. Operating between -65°C and 200°C, they are environmentally sealed and reliable in extreme conditions. Utilizing M39029 rear release crimp contacts, they ensure secure connections. Available in 9 shell sizes and 52 insert arrangements, these connectors are essential for applications requiring durability and performance.