TNC Cap Cover with IP67 Seal and Chain
The Amphenol 202101-13 is a TNC cap cover — a threaded dust cap designed to protect a TNC jack when the cable is disconnected. It's built from a brass body with a nickel finish, giving it the corrosion resistance you need for outdoor or coastal antenna runs where salt air finds bare metal. The cap carries an IP67 rating, so it seals against rain, hose-down, and temporary submersion when mated to the jack. An attached chain keeps the cap from wandering off on a tower or in a panel — you unscrew it, it hangs there, you don't lose it in the grass.
IP67 vs Standard Cap — What the Chain and Seal Buy You
Compared to the 202101-10, which is a plain TNC cap without a chain or IP67 rating, the 202101-13 adds two field-relevant features: the IP67 seal keeps moisture and dust out of the jack interface, and the chain tethers the cap to the cable or panel so it's always there when you need it. The 202101-12 shares the IP67 rating but ships in bulk without the chain — the 202101-13 comes in a bag with the chain attached. If you're capping a jack on a piece of gear that gets hosed down or lives outside, the IP67 cap is the one to reach for. If you need the cap to stay with the connector, the chain on this version saves you a field-retrofit step.