An electrical contact includes a contact body having a mating portion and a barrel portion configured for receiving an electrical conductor. The barrel portion includes a wall defining a bore having a closed end and open end, and the bore includes a core receiver portion for receiving the core of an electrical conductor and a plug receiver portion adjacent the closed end of the bore. A hole is formed in the barrel portion proximate the closed end of the bore and extending into the plug receiver portion of the bore through the wall. A plug has a body portion configured to be inserted into the bore and to engage the plug receiver portion of the bore. The plug is disposed in the end of the plug receiver portion and is further configured to seal the plug receiving portion of the bore and the hole from the rest of the bore.