The 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 versatile connectivity options. These connectors are environmentally sealed and can operate in temperatures ranging from -65 °C to 200 °C. Made of high-strength aluminum, they come in 9 shell sizes and 52 insert arrangements, accommodating various applications. Utilizing M39029 rear release crimp contacts, including sizes 22D, 22M, 22, 20, 16, and 8, they ensure reliable connections. Plating options such as cadmium and nickel coatings provide durability, and RoHS-certified finishes are available. Suitable for military and industrial use, the MIL-DTL-38999 I connectors are ideal for demanding scenarios where reliable performance is essential.