MS3122E16-26P is a miniature cylindrical box mounting receptacle connector designed for MIL-C-26482 Series 1 applications with crimp-type contacts. This shell size 16 connector features an environmental resisting design (Class "E") with a maximum length of 1.522 inches and a contact diameter of 1.057 inches, supporting up to 26 contacts. The connector operates with a dielectric withstanding voltage of 1500 volts (RMS) at 60 Hz for Service Rating I, and includes tin-plated contacts for standard applications with optional gold plating available. It is designed for reliable performance in harsh environments with thermal shock resistance (no deterioration after 5 cycles at -55°F to +257°F) and vibration performance exceeding MIL-E-5272 Procedure II. Common applications include aerospace, military, and industrial equipment requiring robust, sealed electrical connections.