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 ideal for demanding applications. Available in various mounting options such as front wall, rear wall, and jam nut receptacles, they offer flexibility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8. Constructed with high-strength aluminum shells and offering multiple plating options including cadmium and nickel, they ensure durability and reliability. Suitable for military and industrial use, these connectors meet stringent quality standards.