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 connectivity. These connectors, meeting military specification MIL-DTL-38999 I, are environmentally sealed and operate efficiently in temperatures ranging from -65 °C to 200 °C. Constructed with high-strength aluminum shells, they come in various plating options including electroless nickel and cadmium finishes, with RoHS certified cadmium-free alternatives available. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Suitable for applications requiring rugged performance, MIL-DTL-38999 I connectors provide durability and conductivity in demanding conditions.