MIL-DTL-38999 Series II connectors offer exceptional reliability in harsh environments, featuring up to 128 contacts housed in an insert. With environmental sealing and an operating temperature range of -65 °C to 200 °C, these connectors are ideal for demanding applications. Available in various mounting styles such as front and rear wall mount, jam nut, and box mount receptacles, they provide versatility in installation. Offering 52 insert arrangements with M39029 rear release crimp contacts, in sizes 22D, 22M, 22, 20, 16, and 12, these connectors ensure secure connections. Constructed with aluminum shells and various plating options including cadmium and nickel, they meet stringent military specifications for performance. RoHS compliant versions are also available. Suitable for use in aerospace, defense, and industrial applications, these connectors guarantee reliable electrical connections in even the harshest conditions.