MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. With a wide operating temperature range of -65 °C to 200 °C, they ensure reliable performance in extreme conditions. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts, catering to various application needs. Crafted from high-strength aluminum, these connectors come in multiple plating options, including RoHS-certified cadmium-free finishes, ensuring both durability and compliance. Perfect for military and industrial applications, they guarantee secure and efficient electrical connections in demanding settings.