The MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in an insert. With front and rear wall mount options, as well as jam nut and box mount receptacles, they offer versatility in installation. These connectors, with a wide operating temperature range of -65 °C to 200 °C, are environmentally sealed for reliable performance. Utilizing M39029 rear release crimp contacts in various sizes, they ensure secure connections. Available in 9 shell sizes and 52 insert arrangements, they cater to diverse application needs. Crafted with aluminum shells and plated in options like electroless nickel and cadmium finishes, they boast durability and corrosion resistance. RoHS certified for environmental compliance, these connectors are ideal for military, aerospace, and industrial applications requiring rugged and reliable connectivity.