The MIL-DTL-38999 Series I connectors boast exceptional durability and performance, with up to 128 contacts housed in an environmentally sealed insert. Designed for harsh environments, these connectors offer a wide operating temperature range from -65°C to 200°C. Featuring various mounting options including front wall, rear wall, and jam nut receptacles, they provide versatility for different applications. With 52 insert arrangements available, these connectors utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, catering to diverse connectivity needs. Crafted with high-strength aluminum shells and offered in a range of plating options, including cadmium-free finishes, they ensure reliable performance in demanding conditions. Compliant with MIL-DTL-38999 I military specifications, these connectors are ideal for use in critical operations where ruggedness and reliability are paramount.