The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts within a sealed insert. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various shell sizes and insert arrangements, they offer flexibility in design. Constructed with high-strength aluminum shells and offering multiple plating options, including cadmium-free finishes, they ensure durability and reliability. The connectors come in different mounting styles, such as front wall mount, rear wall mount, and jam nut receptacles, accommodating diverse installation needs. Utilizing removable crimp contacts, these connectors provide secure and efficient connections, with a mating type of bayonet for easy coupling. Suitable for military and industrial use, they meet MIL-DTL-38999 I specifications for performance and quality.