Amphenol MS3106A184P MIL-SPEC Circular Connector

Amphenol MS3106A184P MIL-SPEC Circular Connector is a four-position plug from the MS3106A family, designed for rugged aerospace, defense, and industrial wiring. The shell size is 18, and this straight-pin plug provides four solder-contact positions for cable termination. It mates with a compatible MS3106A18-series receptacle and backshell to form a sealed, MIL-SPEC circular connection that withstands vibration, humidity, and wide temperature ranges common in mission-critical environments. This configuration (MS3106A184P) is used in avionics harnesses, cockpit and flight-control systems, ground-support equipment, and industrial machinery where reliable continuity in tight spaces is essential. The four-conductor arrangement in a compact circular envelope enables efficient harness routing, while solder-term contacts support robust, serviceable terminations. As part of Amphenol’s MS3106A portfolio, it shares the same basic mating interfaces as other shell sizes and insert configurations within the family, helping designers select the right form factor without reworking harnesses. The part is typically specified when a MIL-SPEC, circular connector with a four-position plug is required, ensuring compatibility with standard MS3106A receptacles and mating hardware in aerospace and defense applications.