MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts, housed in environmentally sealed inserts. Designed for harsh environments, these connectors feature various mounting options including front and rear wall mount, as well as jam nut receptacles, all meeting stringent military specifications. With a wide operating temperature range of -65°C to 200°C, they ensure reliable performance in extreme conditions. Available in 9 shell sizes and 52 insert arrangements, these connectors use M39029 rear release crimp contacts, providing secure and efficient connections. The high strength aluminum shells come in a range of plating options such as electroless nickel and cadmium finishes, including RoHS-certified cadmium-free variants. Perfect for demanding applications, these connectors guarantee durability and conductivity, making them ideal for military, aerospace, and industrial use.