MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in a sealed insert, designed for harsh environments. Featuring various mounting options like front and rear wall mounts, as well as jam nut receptacles, these connectors meet stringent military specifications. They are available in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in multiple sizes. Constructed with durable aluminum shells and offering plating options such as cadmium and nickel, they ensure reliable performance in extreme conditions. With RoHS certified finishes available, these connectors are ideal for applications requiring rugged and environmentally resistant electrical connections.