MIL-DTL-38999 Series I connectors are designed for harsh environments, with up to 128 contacts in an insert. Featuring front and rear wall mount options, as well as jam nut receptacles, they offer reliable connectivity. Operating in temperatures ranging from -65 °C to 200 °C, these connectors are environmentally sealed for protection. Made with high-strength aluminum shells and available in various plating options, including cadmium-free finishes, they ensure durability and performance. Utilizing M39029 rear release crimp contacts, they guarantee secure connections. With a bayonet coupling and gold contact plating, these connectors are ideal for military and industrial applications.