MIL-DTL-38999 Series II connectors are designed for demanding environments, offering up to 128 contacts in a single insert. These connectors are fully sealed for environmental protection and can operate in temperatures ranging from -65 °C to 200 °C. Available in various mounting styles such as front wall, rear wall, jam nut, and box mount, they provide flexibility for different applications. With a wide range of shell sizes and insert arrangements, they accommodate M39029 rear release crimp contacts in various sizes. Constructed with durable aluminum shells and offering multiple plating options, including cadmium-free finishes, these connectors ensure reliable performance. The crimp type, bayonet coupling design of the MS27474 receptacle is ideal for military applications, meeting MIL-DTL-38999 II specifications. Gold-plated contacts, rated for 500 mating cycles, guarantee excellent conductivity. Suitable for harsh environments, these connectors are a dependable choice for critical electrical connections.