MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, offering robust environmental sealing and operating temperatures ranging from -65°C to 200°C. This harsh environment connector family includes front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs, providing versatile connectivity options. With 9 shell sizes and 52 insert arrangements available, these connectors utilize M39029 rear release crimp contacts in various sizes. Constructed with high-strength aluminum shells, they come with a choice of plating options, including electroless nickel and cadmium finishes. RoHS certified cadmium-free versions are also offered. Suitable for military and industrial applications, these MIL-DTL-38999 I connectors ensure reliable performance in demanding environments.