The MIL-DTL-38999 Series II connectors are engineered for durability in harsh environments, featuring up to 128 contacts within a sealed insert. Designed for a wide temperature range from -65°C to 200°C, these connectors offer reliable performance in extreme conditions. With various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility for different applications. Available in 9 shell sizes and 52 insert arrangements, they accommodate M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and offering plating options like electroless nickel and cadmium finishes, they prioritize both durability and performance. Meeting MIL-DTL-38999 II specifications, these connectors are ideal for military and aerospace applications requiring rugged and dependable connectivity.