MIL-DTL-38999 Series II connectors boast up to 128 contacts housed in a durable insert, providing robust environmental sealing for a wide temperature range of -65°C to 200°C. These connectors, compliant with military specification MIL-DTL-38999 II, offer various mounting options including front and rear wall mount, jam nut, and box mount receptacles. Featuring straight, RFI grounding, and standard plugs with a 90-degree cable clamp, they cater to diverse connectivity needs. With 9 shell sizes and 52 insert arrangements available, these connectors utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, ensuring reliable performance. Crafted from aluminum with plating options such as electroless nickel, they deliver enhanced durability. RoHS compliant finishes are also offered, making them environmentally friendly. Suitable for demanding applications, these connectors guarantee secure and efficient electrical connections in harsh environments.