MIL-DTL-38999 Series I connectors feature up to 128 contacts, offering environmental sealing and a wide operating temperature range from -65 °C to 200 °C. With options for front wall mount, rear wall mount, and jam nut receptacles, this harsh environment connector family is versatile. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts in various sizes. Constructed with high-strength aluminum shells, these connectors come with a range of plating options including gold, electroless nickel, and cadmium finishes. Designed for military specifications, they ensure reliable performance in demanding applications.