MIL-DTL-38999 Series II connectors, also known as MS27472, feature up to 128 contacts in an insert, perfect for demanding environments. With a wide operating temperature range from -65 °C to 200 °C, these connectors are ideal for harsh conditions. Available in various mounting styles including front wall mount, rear wall mount, and jam nut receptacles, they offer versatility in installation. The connectors come in aluminum shells with options for plating such as cadmium and nickel, ensuring durability. Utilizing M39029 rear release crimp contacts, they provide reliable connections. Designed for military specifications, these circular receptacles are essential for applications requiring high performance and environmental resistance.