MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various shell sizes and insert arrangements, they offer flexibility in design. Constructed with high-strength aluminum shells and offering multiple plating options, including RoHS-compliant finishes, they ensure durability and reliability. The connectors come in different styles such as front wall mount, rear wall mount, and jam nut receptacles, all featuring bayonet coupling for secure connections. Utilizing M39029 rear release crimp contacts, they guarantee easy installation and maintenance. Suitable for military and industrial use, these connectors are ideal for demanding environments where performance is critical.