MIL-DTL-38999 Series II connectors are designed for rugged environments, offering up to 128 contacts in a single insert. With an impressive operating temperature range of -65 °C to 200 °C, these connectors are ideal for harsh conditions. Available in various mounting options such as front wall mount, rear wall mount, jam nut, and more, they provide flexibility in installation. Featuring aluminum shells with plating options including electroless nickel and iridescent yellow cadmium, they ensure reliable performance. The connectors use M39029 rear release crimp contacts in sizes 22D, 22M, 22, 20, 16, and 12, guaranteeing secure connections. Compliant with MIL-DTL-38999 II military specifications, these circular plugs with bayonet coupling are suitable for demanding applications where durability is paramount.