MIL-DTL-38999 Series I connectors feature up to 128 contacts in an environmentally sealed insert, designed to withstand harsh conditions with an operating temperature range of -65 °C to 200 °C. Available in various mounting options including front wall mount, rear wall mount, and jam nut receptacles, these connectors offer versatility in application. Utilizing M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, they ensure secure connections. The high-strength aluminum shells come in 9 different sizes and 52 insert arrangements, plated with options such as light iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum. With RoHS certified finishes available, these connectors are ideal for military and industrial use, providing reliable performance in demanding environments.