MIL-DTL-38999 Series II connectors feature up to 128 contacts in an insert, offering durable environmental sealing for reliable performance in harsh conditions. With an operating temperature range of -65 °C to 200 °C, these connectors are suitable for a wide range of applications. Available in various mounting styles, including front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. The connectors come in 9 shell sizes and 52 insert arrangements, accommodating M39029 rear release crimp contacts for secure connections. Constructed with aluminum shells and plated with options such as gold, electroless nickel, and cadmium-free finishes, they ensure long-lasting durability and conductivity. Meeting MIL-DTL-38999 II military specifications, these connectors are ideal for demanding environments requiring rugged and reliable electrical connections.