The MIL-DTL-38999 Series I connectors offer robust performance with up to 128 contacts in a sealed insert, designed for harsh environments. Featuring various mounting options like front and rear wall mounts, as well as jam nut receptacles, these connectors meet stringent military specifications. With a wide operating temperature range of -65°C to 200°C, they ensure reliable functionality in extreme conditions. Utilizing M39029 rear release crimp contacts, they come in 9 shell sizes and 52 insert arrangements, including sizes 22D, 22M, 22, 20, 16, and 8 for diverse connectivity needs. Constructed with high-strength aluminum shells and available in multiple plating options such as gold, electroless nickel, and cadmium-free finishes, they guarantee durability and performance. Suitable for various applications requiring secure and efficient electrical connections, these connectors are essential components in demanding environments.