MIL-DTL-38999 Series I connectors offer reliable connectivity in harsh environments, featuring up to 128 contacts sealed for environmental protection. With an operating temperature range of -65 °C to 200 °C, these connectors are suited for demanding applications. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts. The connectors, made of high-strength aluminum, come with plating options like cadmium and nickel, meeting different specifications. Offering RoHS-certified finishes, they ensure compliance with environmental standards. Suitable for military and industrial use, these connectors provide durable performance with their bayonet coupling and straight plug design.