MIL-DTL-38999 Series I connectors, also known as MS27656, are high-performance electrical receptacles designed for back panel wall mounting in harsh environments. Featuring a durable aluminum shell with electroless nickel and cadmium olive drab plating, these connectors ensure reliable conductivity and environmental resistance. With a removable crimp contact design and bayonet coupling, they offer easy installation and 500 mating cycles. Each connector accommodates 2 gold-plated contacts, suitable for signal and power transmission. Operating in temperatures ranging from -65°C to 175°C, they are ideal for military and aerospace applications requiring rugged and reliable connectivity.