97-18-20P is a cylindrical connector from the Amphenol 97 Series, designed for medium to heavy weight industrial applications. This connector features a shell size 18 with a 1-1/8-18 coupling thread and an 18-20 insert arrangement providing 5 total contacts with size 16 contacts and 1/16 inch (1.57 mm) mechanical spacing. The connector operates over a temperature range of -55°C to +125°C and features threaded coupling with hard dielectric inserts and non-rotating contacts. It is intermateable and intermountable with existing 97 Series and SAE AS50151 connectors, making it suitable for a wide range of industrial, military, and commercial applications requiring durable and reliable electrical connections.