MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, with an operating temperature range from -65 °C to 200 °C. Offering front wall mount, rear wall mount, and jam nut receptacles, these connectors meet stringent military specifications for harsh environments. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts in various sizes. Constructed of high-strength aluminum, they come with plating options like cadmium and nickel, with RoHS compliant finishes. Ideal for demanding applications, these connectors ensure reliable performance with their durable design and versatile configurations.