MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts within 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 from -65°C to 200°C, they ensure reliable performance in diverse conditions. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts, offering flexibility for various applications. Constructed with high-strength aluminum shells, they come in a range of plating options, including cadmium-free finishes for RoHS compliance. Ideal for military and industrial use, these connectors provide secure and durable electrical connections, meeting stringent performance standards.