BNC Jack for 75-Ohm Video and Telecom — What This Connector Does
The 413590-8: It mates with a standard BNC plug using a bayonet lock — the twist-and-lock coupling that holds the interface together without threads. The 500 V voltage rating covers the DC bias found on some video distribution lines. This is a panel-mount bulkhead connector — it installs through a panel cutout and secures with a front-side nut.
Cable Termination and Kit Contents
The 413590-8 is sold as a complete termination kit: one BNC jack body, one center contact, one ferrule, one sealing gasket, one lockwasher, and one mounting nut. The contact terminates via crimp, and the shield is also crimped to the ferrule. The cable group is RG-179 or RG-187, both 75 Ohm miniature coax cables common in video patching and broadcast camera runs. The dielectric material is polyethylene (PE), which gives a stable 75 Ohm characteristic impedance through the connector body.
Obsolete — Sourcing This Part Today
If you need a functionally equivalent 75 Ohm BNC jack for new designs, look at current TE BNC offerings in the same impedance and cable group — but verify the panel cutout, mounting feature, and mating face dimensions against your assembly drawing. The 413590-8 uses a bulkhead front-side nut; a different nut style or thread pitch will not fit the same panel hole.