MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in a sealed insert for reliable performance. With an operating temperature range from -65 °C to 200 °C, they are suitable for a wide range of applications. Available in various shell sizes and insert arrangements, these connectors offer flexibility in design. Constructed with high-strength aluminum shells and offered in different plating options, including cadmium-free finishes, they ensure durability and compliance with RoHS standards. The connectors, such as the MS27467 model, are meticulously engineered for military specifications, with gold-plated removable crimp contacts for optimal conductivity. Their bayonet coupling and straight plug design make them easy to install, and their environmental resistance and 500-cycle mating life guarantee long-term reliability in wall and jam nut mounting receptacles.