MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in a sealed insert. Operating in extreme temperatures from -65 °C to 200 °C, they meet demanding environmental requirements. Featuring various mounting options like front and rear wall mount, as well as jam nut receptacles, these connectors ensure versatile installation. Compliant with military specifications, they guarantee reliable performance in harsh conditions. With a range of shell sizes and insert arrangements, including M39029 rear release crimp contacts, they cater to diverse applications. Constructed with high-strength aluminum shells and offering multiple plating options, such as cadmium-free finishes, they prioritize durability and environmental consciousness. Ideal for aerospace, defense, and industrial use, these connectors provide secure and efficient electrical connections.