97-18-8S(431) is a standard cylindrical connector component from the Amphenol 97 Series, designed for reliable electrical interconnections in industrial applications. This connector features a size 18 shell with an 8S insert arrangement configured for socket contacts. The 97 Series connectors are UL recognized and available with various plating options including olive drab cadmium, bright chromate cadmium, black zinc alloy (621), electroless nickel (689), and gray zinc nickel (958) for RoHS compliance. The connector utilizes 1-1/8-18 threads and is compatible with rear release crimp contacts that must be ordered separately. These connectors are commonly used in industrial, military, and commercial applications where durable and secure electrical connections are required.