MIL-DTL-38999 Series II connectors are designed for demanding environments, with up to 128 contacts housed in a sealed insert. Offering a wide operating temperature range of -65°C to 200°C, these connectors come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they feature M39029 rear release crimp contacts for reliable connections. Constructed with aluminum shells and a choice of plating options, including cadmium-free finishes, these connectors meet stringent military specifications for durability and performance in harsh conditions. Perfect for applications requiring high reliability and environmental resistance.