MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert, ideal for harsh environments. Featuring various receptacle types, including front and rear wall mount and jam nut options, they ensure secure installations. Compliant with military specifications, these connectors are designed for durability, with a wide operating temperature range from -65 °C to 200 °C. Utilizing M39029 rear release crimp contacts, they guarantee reliable connections in sizes 22D, 22M, 22, 20, 16, and 8. With a choice of plating options, such as electroless nickel and cadmium finishes, they cater to diverse industrial needs. Available in different shell sizes and insert arrangements, these connectors are versatile and RoHS compliant, meeting environmental standards. Perfect for applications requiring rugged and dependable circular connectivity.