MIL-DTL-38999 Series I connectors feature up to 128 contacts in an insert, designed for harsh environments with operating temperatures ranging from -65°C to 200°C. Available in various shell sizes and insert arrangements, they offer front wall mount, rear wall mount, and jam nut receptacles, along with RFI grounding plugs. Utilizing M39029 rear release crimp contacts, these connectors come in high-strength aluminum shells with plating options such as cadmium and nickel. RoHS-certified finishes are also available. Suitable for military and aerospace applications, these connectors provide reliable connectivity with male pin contacts and a bayonet coupling system.