The MIL-DTL-38999 Series I connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, they operate reliably in temperatures ranging from -65 °C to 200 °C. Featuring front and rear wall mount options, as well as jam nut receptacles, this connector family ensures secure installations. With 52 insert arrangements and M39029 crimp contacts, they provide flexibility for various applications. Constructed with high-strength aluminum shells and available in different plating options, including RoHS-compliant finishes, these connectors guarantee durability and reliability. Perfect for military and industrial use, their bayonet coupling and box mounting flange make them ideal for back panel installations.