MIL-DTL-38999 Series II connectors are designed for rugged environments, with up to 128 contacts housed in a sealed insert. Operating between -65 °C and 200 °C, these connectors offer versatility in harsh conditions. Featuring various mounting options, including front and rear wall mount, jam nut, and box mount receptacles, they cater to diverse applications. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts for secure connections. Constructed from aluminum with plating options such as cadmium and nickel, they ensure durability. With RoHS compliant finishes, these connectors guarantee both performance and environmental safety.