MIL-DTL-38999 Series II connectors feature up to 128 contacts within an environmentally sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles including front and rear wall mount, jam nut, and box mount receptacles, these connectors offer versatility in military and aerospace applications. Compliant with military specification MIL-DTL-38999 II, they ensure reliable performance with RoHS-certified finishes for environmental responsibility. Crafted from aluminum with options for plating like electroless nickel, these connectors guarantee durability and conductivity. The series provides secure bayonet coupling, utilizing M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, catering to diverse connection needs. With features like EMI/RFI shielding and removable crimp contacts, they meet stringent standards for performance and reliability in demanding environments.