MIL-DTL-38999 Series I connectors offer robust connectivity solutions with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature front and rear wall mount options, along with jam nut receptacles. Utilizing M39029 rear release crimp contacts, they ensure reliable performance in sizes 22D, 22M, 22, 20, 16, and 8, including coax and twinax configurations. With a wide range of plating options such as electroless nickel and cadmium finishes, they cater to diverse industrial needs. Operating efficiently in temperatures ranging from -65 °C to 200 °C, these connectors are ideal for demanding applications. Made from high-strength aluminum, they guarantee durability and longevity, meeting stringent military specifications. Suitable for various industries, these connectors provide secure and efficient electrical connections in challenging operating environments.