MIL-DTL-38999 Series II connectors are rugged and reliable, designed for harsh environments with up to 128 contacts in an insert. Featuring a wide operating temperature range of -65°C to 200°C, these environmentally sealed connectors offer versatility in various applications. Available in several mount types including front and rear wall mount, jam nut, and box mount receptacles, they ensure secure connections. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts. Constructed with aluminum shells and offering plating options such as electroless nickel, they prioritize durability. RoHS compliant finishes are also available. Perfect for military and industrial use, the MIL-DTL-38999 II connectors guarantee performance in demanding conditions.