6171303 is an open entry circular MIL Spec connector, manufactured by TE Connectivity. It is made of stainless steel and is designed for harsh environments and applications, such as in military, aerospace, or industrial settings. It has a shell size of 7, and contacts with a diameter of 8.37 mm. It has a standard MIL-DTL-83723 compliant contacts, sealing ring and keying options that provide reliable protection against vibration, shock, and extreme temperatures. The connector also comes with standard tin-nickel plating which ensures reliable electrical performance in environments with moisture and extreme temperatures.