The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65 °C to 200 °C, they offer reliable performance in extreme conditions. Available in various shell sizes and insert arrangements, these connectors come in high-strength aluminum shells with options for different plating finishes, including RoHS-certified cadmium-free coatings. Suitable for military and industrial applications, they are ideal for use in wall mount and jam nut receptacles. The connectors utilize M39029 rear release crimp contacts, ensuring secure and efficient connections. With a mating type of bayonet and a contact style of socket, they offer 500 mating cycles durability and conductivity. The MIL-DTL-38999 Series I connectors provide reliable connectivity in demanding environments.