MIL-DTL-38999 Series I connectors are rugged and reliable, designed for harsh environments with up to 128 contacts in an insert. These connectors feature front wall mount, rear wall mount, and jam nut receptacles, offering versatility in installation. Meeting military specification, they ensure optimal performance in demanding applications. With a wide operating temperature range of -65 °C to 200 °C, they are suitable for use in extreme conditions. The high-strength aluminum shells, available in various plating options including cadmium-free finishes, guarantee durability and corrosion resistance. Utilizing M39029 rear release crimp contacts, these connectors provide secure and efficient electrical connections. Their bayonet coupling mechanism and socket contact style ensure easy mating and reliable conductivity. Ideal for back panel wall mounting, they are widely used in aerospace, defense, and industrial applications where rugged performance is essential.