MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in a sealed insert. With an operating range of -65°C to 200°C, they offer reliable performance in harsh conditions. Available in various mounting styles, including jam nut, these connectors come in aluminum shells with options for plating finishes like electroless nickel and cadmium olive drab. Meeting military specification MIL-DTL-38999 II, they ensure durability and longevity, with gold-plated contacts for optimal conductivity. Suitable for diverse applications, these circular receptacles are ideal for demanding military and industrial settings.