The 97-3106A-18(639)(0850) is a standard cylindrical straight plug from Amphenol's 97 Series, designed for durable, general-duty interconnections. It features a size 18 solid backshell fabricated from high-grade aluminum alloy with a bright chromate over cadmium plate finish. The connector utilizes threaded coupling for secure mating, single key/keyway polarization, and contains silver-plated solder contacts within a hard diallyl-phthalate insert. Operating over a temperature range of –55°C to +125°C, this field-proven connector is a cost-effective solution for applications in robotics, machine tools, and welding, and is intermateable with other 97 Series and SAE AS50151 connectors.