The 413453-1: The nickel-plated body and gold-plated centre contact resist corrosion in lab, test-equipment, and broadcast environments where connectors are swapped regularly. Silver in colour, it ships in a box.
TE Connectivity lists the 413453-1 as Obsolete. No official successor or cross-reference has been published — the buyer should confirm the BNC jack interface and source through the surplus or broker channel.