MS27513E18B11P is a MIL-DTL-38999 Series II connector, featuring a box mounting flange with an extended grommet for secure electrical connections in harsh environments. This circular receptacle accommodates 11 removable crimp contacts, each plated with gold for optimal conductivity. With a durable aluminum shell and electroless nickel or cadmium olive drab finish, it offers reliable performance in a wide temperature range from -65°C to 175°C. Designed for military and aerospace applications, this connector is bayonet-coupled and meets stringent environmental standards for ingress protection, ensuring longevity and reliability in demanding operating conditions.