The MIL-DTL-38999 Series I connectors offer robust connectivity solutions for harsh environments, featuring up to 128 contacts within a sealed insert. With operating temperatures ranging from -65 °C to 200 °C, these connectors are designed for durability. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts, ensuring secure connections. The connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. Their bayonet coupling and front, rear, and jam nut receptacles make them versatile for different mounting configurations. With gold-plated contacts, these connectors provide reliable conductivity, suitable for military and industrial applications.