MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for demanding applications. Available in various shell sizes and insert arrangements, they offer flexibility in design. Constructed with high-strength aluminum shells and offering options for plating, including cadmium-free finishes, these connectors ensure reliable performance. The connectors come in different styles like front wall mount, rear wall mount, and jam nut receptacles, accommodating different mounting requirements. Utilizing M39029 rear release crimp contacts, they provide secure connections. These connectors, compliant with MIL-DTL-38999 I specifications, are ideal for military and aerospace applications, where durability and performance are paramount.