MIL-DTL-38999 Series II connectors feature up to 128 contacts in an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65°C to 200°C. Available in various configurations including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in military and aerospace applications. These connectors, compliant with MIL-DTL-38999 II specifications, come in aluminum shells with options for RoHS certified finishes. With gold-plated, removable crimp contacts in sizes 22D(55) and others, they ensure reliable conductivity. The straight plug design, featuring bayonet coupling and EMI/RFI shielding, guarantees secure connections. Suitable for demanding service ratings, these connectors provide 500 mating cycles with excellent environmental resistance.