31-359 is a 50O BNC connector designed for RF signal transmission applications. It features a bayonet lock coupling mechanism per MIL-STD-348 with a quarter-turn mating action. The connector operates over a temperature range of -65°C to +165°C and offers a minimum durability of 500 mating cycles. Construction materials include brass or phosphor bronze body with nickel plating, gold-plated male contact, and PTFE insulator. This BNC connector is suitable for test equipment, instrumentation, and communication systems requiring reliable RF connections.