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, these connectors are highly durable. Available in various shell sizes and insert arrangements, they offer flexibility in design. Made with high-strength aluminum shells and offering a selection of plating options, including RoHS certified finishes, these connectors ensure reliable performance. The series includes front wall mount, rear wall mount, and jam nut receptacles, as well as RFI grounding plugs, catering to different installation needs. Utilizing M39029 rear release crimp contacts, they offer secure connections. Suitable for military and other demanding applications, these connectors are ideal for use in aerospace, defense, and industrial settings.