The 97-3102A-18-4P is a box receptacle connector from the Amphenol 97 Series standard cylindrical connectors, designed for solder-type termination with 4 contacts in size 18 configuration. This connector features a solid shell construction with an integral polarized key in the front shell, mounted directly on chassis, equipment, or panel. It operates over a temperature range of -55°C to +125°C and utilizes a threaded coupling with hard dielectric inserts and non-rotating contacts. The connector is UL recognized (File E115497) and CSA certified (File LR69183), offering cost-effective, field-proven performance. It is intermateable and intermountable with existing 97 Series and SAE AS50151 connectors, making it suitable for medium to heavy-weight cylindrical connector applications in industrial and aerospace environments.