The 1-1337543-0: The right-angle through-hole body and front side nut let you fix it to a chassis or enclosure wall while the signal path turns parallel to the board. Rated to 4 GHz, it covers the bulk of baseband, video, and instrumentation links where BNC is the standard bayonet-lock interface. Board guide and isolated features are listed, though the board guide here refers to alignment features on the panel-mount flange, not a PCB slot guide.
Obsolete — Finding a Cross or Last-Time Stock
The 1-1337543-0 is marked Obsolete on the manufacturer's lifecycle record. The typical path for this part is surplus or independent distribution stock — last-time-buy inventory that is already in the channel. For a form-fit-function match, the buyer needs a BNC jack with the same 50 Ohm impedance, 4 GHz bandwidth, panel-mount bulkhead with front side nut, right-angle through-hole solder termination, and gold centre contact. The ZDC Greenpar series includes other BNC variants; a parametric search across the series using those fixed parameters is the reliable way to find an interchangeable alternative — pitch and pinout are not variables on a coaxial connector, but the mounting hole pattern and panel cut-out must match.