MIL-DTL-38999 Series I connectors offer robust connectivity with up to 128 contacts in a sealed insert. Designed for harsh environments, they boast a wide operating temperature range from -65 °C to 200 °C. Available in various mounting options including front and rear wall mount, as well as jam nut receptacles, these connectors ensure secure installations. Featuring M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 8, they cater to diverse connectivity needs. The high-strength aluminum shells come in different plating options such as iridescent yellow cadmium, olive drab cadmium, electroless nickel, and black anodized aluminum, with RoHS compliant finishes also offered. With a service rating of I and 500 mating cycles, these connectors guarantee reliable performance in demanding applications.