MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range from -65 °C to 200 °C, these connectors offer reliable performance in demanding conditions. Available in various shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts, ensuring secure connections. The high-strength aluminum shells come with plating options such as cadmium and nickel, meeting diverse application needs. With bayonet coupling and straight plug configuration, these military-spec connectors are ideal for aerospace, defense, and industrial applications requiring rugged and dependable connectivity.