The 208473-1 is a 37-position straight Square Flange Receptacle Assembly with socket contacts, black thermoplastic housing and 28-37 insert arrangement. The reverse sex circular plastic connector has nickel-plated zinc alloy shell, keyed mating alignment and threaded coupling mating retention. This connector is available in a variety of configurations to meet signal, low current and high current requirements. Operating temperature range from -55 to +125°C. This quick connect/disconnect circular connector features polarized housings to prevent mismating with other insert arrangements. Contact protection 1-3/8-18 UNEF-2A Thread UL94V-0 Flammability rating Applications Industrial