MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they feature front and rear wall mount options, as well as jam nut receptacles with RFI grounding plugs. With a wide operating temperature range of -65 °C to 200 °C, these connectors are suitable for demanding applications. Available in various shell sizes and insert arrangements, they use M39029 rear release crimp contacts for secure connections. The connectors come in durable aluminum shells with plating options such as cadmium and electroless nickel. RoHS certified finishes are also available, making them environmentally friendly choices. Perfect for military and industrial use, these connectors ensure reliable performance in challenging conditions.