MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in a sealed insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors offer reliability in extreme conditions. Available in various mounting styles including front and rear wall mount, jam nut, and box mount, they cater to diverse applications. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with aluminum shells and offering plating options like cadmium and electroless nickel, they ensure durability. RoHS compliant finishes are also available. These connectors, meeting MIL-DTL-38999 II standards, are ideal for military, aerospace, and industrial use.