MIL-DTL-38999 Series II connectors are designed for harsh environments, featuring up to 128 contacts in a rugged insert. With front and rear wall mount options, as well as jam nut and box mount receptacles, they offer versatile connectivity solutions. These connectors, operating between -65 °C and 200 °C, are environmentally sealed for reliability. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and various plating options, including cadmium-free finishes, they meet RoHS compliance standards. Perfect for applications requiring durability and high performance, these connectors are ideal for military and industrial use.