The MIL-DTL-38999 Series II connectors are designed for rugged environments, featuring up to 128 contacts in an insert with environmental sealing. Operating in temperatures ranging from -65°C to 200°C, these connectors come in various configurations including front and rear wall mount, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they use M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12. With aluminum shells and plating options such as electroless nickel and cadmium finishes, these connectors ensure reliable performance in demanding applications. The straight plug variant, like this one with 53 gold-plated contacts, is ideal for military and industrial settings requiring secure and durable electrical connections.
