The MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an insert. With environmental sealing and an operating temperature range from -65°C to 200°C, these connectors are ideal for a wide range of applications. Featuring various mounting options including front and rear wall mount, jam nut, and box mount receptacles, they provide flexibility in installation. Available in 9 shell sizes and 52 insert arrangements, these connectors utilize M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. Constructed with aluminum shells and offering plating options such as electroless nickel and cadmium finishes, they ensure durability and reliability. Compliance with military specification MIL-DTL-38999 II guarantees high performance in demanding situations.