The MIL-DTL-38999 Series II connectors feature a robust design with up to 128 contacts, providing reliable connectivity in harsh environments. Offering a wide operating temperature range of -65°C to 200°C, these circular connectors are ideal for military and aerospace applications. Available in various mount types such as front and rear wall mount, jam nut, and box mount receptacles, they offer versatility in installation. With M39029 rear release crimp contacts in sizes 22D to 12, these connectors ensure secure connections. Made of aluminum with options for plating finishes including gold, electroless nickel, and cadmium free coatings, they guarantee durability and corrosion resistance. Meeting MIL-DTL-38999 II specifications, they provide high performance with a service rating of M and service class E. Suitable for use in demanding environments, these connectors offer reliable and efficient electrical connections.