MIL-DTL-38999 Series I connectors offer a robust solution for harsh environments, featuring up to 128 contacts in a sealed insert. With an extensive 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 accommodate M39029 rear release crimp contacts for secure connections. The high-strength aluminum shells come in multiple plating options, including cadmium-free finishes for environmental compliance. Whether in front or rear wall mount configurations, or as jam nut receptacles, these connectors ensure reliable performance in military and industrial settings.