Amphenol 1MS3102A-28-15S MIL-SPEC Circular Connector

Amphenol's 1MS3102A-28-15S is a MIL-DTL-5015 circular connector from the MS3102 family, shell size 28, featuring a 35-position insert in an aluminum alloy shell. This box-mount receptacle uses threaded coupling and solder-cup contacts for durable, field-terminated connections in harsh environments. The insert arrangement supports 35 contact positions, designed to mate with the corresponding MS3102A28-15P plug. The body finish is olive drab chromate over cadmium, consistent with MIL-SPEC corrosion resistance conventions. Operating temperature ranges from -55°C to +125°C, enabling use across a broad range of operating climates. Common applications include aircraft avionics harnesses, military ground-support equipment, industrial control panels, and marine systems where a rugged circular interconnect is required for power and signal transmission. This size-28 shell variant is selected when a high-contact-count yet robust, threaded-coupling connector is needed in panel-mounted configurations. Typically paired with the MS3102A28-15P plug and compatible MIL-DTL-5015 backshells and mounting hardware for panel installations.