The MIL-DTL-38999 Series I connectors, also known as MS27468, are designed for harsh environments with up to 128 contacts in an insert. Featuring front wall mount, rear wall mount, and jam nut receptacles, they offer RFI grounding plugs for secure connections. With an operating temperature range of -65°C to 200°C, these connectors are suitable for a wide range of applications. They come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in various sizes. Constructed with high-strength aluminum shells, they are available in different plating options, including cadmium-free finishes for RoHS compliance. Ideal for military and industrial use, these connectors ensure reliable performance in demanding conditions.