MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various receptacle types including front and rear wall mount, jam nut, and box mount options, these connectors offer versatility in installation. The straight, RFI grounding, and standard plugs come with a 90-degree cable clamp for secure connections. With 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 offered in different plating options such as electroless nickel, these connectors ensure reliable performance in demanding applications. RoHS compliant finishes are available, making them suitable for a wide range of industries.