The MS3112E22-55P is a miniature cylindrical box mounting receptacle connector manufactured by Amphenol Industrial Operations, conforming to MIL-C-26482 Series 1 specifications. This connector features solder contacts with an environmental resisting (Class E) service class designation and a shell size 22 configuration. The receptacle is designed for box mounting applications with bayonet coupling, providing reliable electrical connections in aerospace, military, and industrial equipment. Key dimensional specifications include a maximum length of 1.323 inches and a maximum diameter of 0.531 inches, with a thread class 2A coupling mechanism. The connector supports potting boot and strain relief options for enhanced environmental protection and mechanical durability in demanding applications.