MIL-DTL-38999 Series II connectors feature up to 128 contacts in a sealed insert, designed for harsh environments with an operating temperature range of -65 °C to 200 °C. Available in various mounting styles like front and rear wall mount, jam nut, and box mount, these connectors offer versatility for different applications. With 52 insert arrangements and M39029 rear release crimp contacts, they ensure reliable connectivity. Constructed with aluminum shells and offering multiple plating options including gold and electroless nickel, they meet stringent military specifications for durability. Perfect for demanding environments, these connectors guarantee long-lasting performance in aerospace, defense, and industrial applications.