MIL-DTL-38999 Series I connectors feature up to 128 environmentally sealed contacts, designed for harsh environment applications. With an operating temperature range of -65°C to 200°C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for plating, including cadmium-free finishes. The family includes front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, ensuring versatile connectivity solutions. Utilizing M39029 rear release crimp contacts, they guarantee secure and efficient connections. RoHS compliant finishes are also offered, catering to environmental regulations. Designed for military specifications, these connectors are suitable for demanding environments, providing durability and longevity.