The 97-16S-1S(431) is a single-contact socket insert solder-type cylindrical connector from Amphenol's 97 Series, featuring a #16 wire gauge contact with service rating A. This connector is part of a durable, field-proven design that operates reliably across a temperature range of -55°C to +125°C and supports limiting operating voltages of 700 VDC or 500 VAC (rms) at sea level. The connector utilizes threaded coupling with hard dielectric inserts, non-rotating contacts, and single key/keyway polarization for secure mating. It is intermateable and intermountable with existing 97 Series and SAE AS50151 connectors, and carries UL recognition (File E115497) and CSA certification (File LR69183). The 97-16S-1S(431) is ideal for industrial applications requiring reliable electrical connections in harsh environments, offering cost-effective performance with optional plating finishes including gray zinc nickel and electroless nickel.