MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, offering robust environmental sealing and a wide operating temperature range from -65°C to 200°C. These harsh environment connectors come in various styles including front and rear wall mount, jam nut, and box mount receptacles. Available as straight, RFI grounding, and standard plugs with 90-degree cable clamps, they accommodate M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells, they come with plating options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, with RoHS certified cadmium-free finishes. Ideal for military and industrial applications, these connectors ensure reliable performance in demanding environments.