The MIL-DTL-38999 Series I connectors offer a rugged solution for harsh environments, featuring up to 128 contacts in an environmentally sealed insert. With an operating temperature range of -65°C to 200°C, these connectors are suitable for a wide range of applications. Available in various configurations including front and rear wall mount, jam nut receptacles, and RFI grounding plugs, they provide versatility in design. Utilizing M39029 rear release crimp contacts, these connectors ensure secure and reliable connections. Constructed with high-strength aluminum shells and offered in different plating options such as cadmium and nickel, they meet stringent military specifications. Designed for durability, these connectors have a service rating of M and a mating life of 500 cycles, making them ideal for demanding environments.