This Black Rubber Dust Cap protects GX16 and GX12 aviation connectors whenever they are not in use, keeping dust, dirt, and moisture away from the pins and contacts. Available in two sizes, it fits the common 12mm and 16mm panel-mount aviation sockets found on power supplies, battery packs, chargers, sensors, motors, and DIY project enclosures.

The cap pushes over the socket for a snug fit, and its built-in tether ring sits under the connector’s mounting nut, so the cap stays attached to the panel and never gets lost. Fitting or removing it takes a second, which makes it ideal for connectors that are opened and closed often, or left exposed in a workshop, garage, or outdoor setup. It also stops stray wire clippings and metal debris from falling into an open socket.

Choose GX12 or GX16 from the dropdown on this page to match your connector. Check the thread diameter of your connector before ordering, since the two sizes are not interchangeable. A simple, inexpensive way to extend the life of your aviation connectors.