The MIL-DTL-38999 Series II connectors are designed for harsh environments, offering up to 128 contacts in an environmentally sealed insert. With a wide operating temperature range of -65 °C to 200 °C, these connectors are ideal for military and aerospace 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, with M39029 rear release crimp contacts, these connectors offer reliable connectivity. Constructed with aluminum shells and offering plating options such as cadmium and nickel, they ensure durability and performance. RoHS compliant finishes are also available. Perfect for demanding environments, the MIL-DTL-38999 Series II connectors are essential for mission-critical operations.