The 5413590-4: It's built for AT&T KS Cable per the cable group listing, and the kit includes everything needed for a single-port installation: the connector body, one contact, one ferrule, one gasket, one lockwasher, one nut, and two sleeves. The 75 Ohm impedance and 2 GHz maximum frequency make it suited for video, broadcast, and telecom signal paths where 50 Ohm BNCs would introduce a mismatch — you want this specific variant when the system impedance is 75 Ohm, not the more common 50 Ohm.
The 75 Ohm Difference — Why It Matters for Signal Integrity
Most BNC connectors you'll find are 50 Ohm, standard for RF and test equipment. This one is 75 Ohm, which changes the game for video and broadcast applications — 75 Ohm is the standard impedance for composite video, SDI, and CATV distribution. If you're replacing a 50 Ohm BNC on a 75 Ohm line, the mismatch will cause reflections and signal degradation — this part avoids that entirely.
The 5413590-4 is officially marked obsolete by TE Connectivity. No official replacement part number is listed in the lifecycle record, so there's no direct drop-in from the manufacturer. We source this part through independent distribution — date-coded, traceable stock — and quote it against an RFQ. If you need a current-production alternative, a parametric search by impedance (75 Ohm), connector style (BNC), and mounting type (panel mount) will surface options, but none is a manufacturer-declared cross.
What You Get in the Kit
The package is Bulk and includes 8 pieces per kit: 1 connector body, 1 contact, 1 ferrule, 1 gasket, 1 lockwasher, 1 nut, and 2 sleeves. That's everything for a single panel-mount installation — no separate hardware order needed.