MIL-DTL-38999 Series II connectors are rugged and reliable, designed for harsh environments with up to 128 contacts in one insert. With operating temperatures spanning from -65°C to 200°C, these connectors offer versatility in demanding applications. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility for installation. Featuring aluminum shells and a range of plating options such as electroless nickel and cadmium finishes, they ensure durability and performance. Compliant with military specification MIL-DTL-38999 II, these circular connectors are ideal for aerospace, defense, and industrial applications requiring secure and sealed connections.