MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. These connectors are environmentally sealed and capable of operating in temperatures ranging from -65°C to 200°C. Available in various shell sizes and insert arrangements, they offer versatility for different applications. The connector family includes front wall mount, rear wall mount, and jam nut receptacles, all with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, they ensure secure and reliable connections. Constructed with high-strength aluminum shells, they come in a range of plating options including cadmium-free finishes for RoHS compliance. With their bayonet coupling and wall mounting flange design, these connectors are suitable for military and industrial use, providing excellent performance in demanding conditions.