The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for different plating finishes, including RoHS-certified cadmium-free coatings. The connector types include front wall mount, rear wall mount, and jam nut receptacles, all utilizing M39029 rear release crimp contacts. With a mating type of bayonet and contact type of removable crimp contacts, they ensure secure and efficient connections. Perfect for applications requiring durability and longevity, these MIL-DTL-38999 Series I connectors are ideal for military, aerospace, and industrial use.