MIL-DTL-38999 Series I connectors are rugged and reliable, designed for harsh environments with up to 128 contacts in an insert. These connectors are environmentally sealed, ensuring optimal performance in extreme conditions with an operating temperature range from -65 °C to 200 °C. Available in various shell sizes and insert arrangements, they feature front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. The connectors utilize M39029 rear release crimp contacts in different sizes, offering versatility for various applications. Constructed with high-strength aluminum shells, they come with a choice of plating options, including RoHS certified cadmium-free finishes. Suitable for military and industrial use, these connectors guarantee secure and efficient electrical connections in demanding environments.