The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring front wall mount, rear wall mount, and jam nut receptacles with RFI grounding plugs. With up to 128 contacts in an insert, these connectors are ideal for demanding applications. Operating between -65 °C and 200 °C, they offer reliable performance in extreme temperatures. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for secure connections. Crafted from high strength aluminum, these connectors come in various plating options, including cadmium-free finishes for RoHS compliance. Suitable for military and industrial use, they ensure durable and efficient connectivity in challenging conditions.