MIL-DTL-38999 Series II connectors feature up to 128 contacts within an insert, offering robust environmental sealing for harsh conditions. With an extensive operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various mounting options such as front wall mount, rear wall mount, jam nut, rear box mount, and front box mount receptacles, they provide versatility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells, they offer durability and reliability. Plating options include light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, with RoHS certified cadmium-free finishes available. Designed to meet MIL-DTL-38999 II military specifications, these connectors guarantee high performance, making them ideal for demanding environments.