Amphenol MS3106A-20-16S Military Circular Connector

Amphenol Industrial's MS3106A20-16S is a 20-position MIL-C-5015 circular connector plug designed for high-reliability wiring in military, aerospace, and rugged industrial applications. It corresponds to shell size 16S and carries a 20-contact insert designated 20-16S, enabling a broad range of signal and power paths in a single rugged chassis. The housing is formed from aluminum alloy to balance lightweight strength with durability, and the contacts terminate via solder cups, making it well suited for harness assemblies where solder terminations are preferred for environmental sealing and vibration resistance. Mating is achieved with a threaded coupling using a 7/8-20 NEF thread standard, providing secure, vibration-resistant engagement and straightforward field assembly with compatible MS3100-series receptacles. As part of the Amphenol MS3106A family, the 20-16S plug is offered by distributors and catalog pages as a MIL-DTL-5015-style connector configuration, commonly specified for avionics, military ground equipment, and rugged mobile platforms where a 20-conductor, size-16S connector is required.