The MIL-DTL-38999 Series I connectors are designed for harsh environments, featuring up to 128 contacts in an insert. Offering front wall mount, rear wall mount, and jam nut receptacles, they ensure secure connections. With a wide range of shell sizes and insert arrangements, these connectors use M39029 rear release crimp contacts in various sizes. Constructed with high-strength aluminum shells and available in different plating options, including RoHS-certified cadmium-free finishes, they guarantee durability and reliability. Operating at temperatures ranging from -65 °C to 200 °C, they are ideal for demanding applications requiring environmental sealing.