The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert for high-density connectivity. These connectors are environmentally sealed, with a wide operating temperature range from -65 °C to 200 °C, making them suitable for rugged applications. Available in various mounting options including front wall mount, rear wall mount, and jam nut receptacles, they offer flexibility in installation. Utilizing M39029 rear release crimp contacts, they ensure reliable connections in sizes 22D, 22M, 22, 20, 16, and 8. With high strength aluminum shells and a range of plating options such as gold, electroless nickel, and cadmium-free finishes, these connectors meet stringent military specifications. The bayonet coupling mechanism provides secure mating, while the RoHS compliance underscores their commitment to environmental responsibility. Perfect for demanding environments, the MIL-DTL-38999 Series I connectors deliver exceptional performance and durability.