Abstract: There is provided a BNC plug connector and associated method for engaging a BNC jack member and indicating a rotational position of the plug connector. The plug connector generally includes a sleeve that defines a first aperture at a first end for receiving a jack member and a second aperture at the second end. A plug member is disposed in the sleeve and configured to engage the jack member, which can be inserted through the aperture at the first end of the sleeve. A contrast surface at the second end of the sleeve defines a contrast surface such as a surface of a washer that is visible through a second aperture at the second end of the sleeve. One or more features, such as tabs, defined at the second end of the sleeve extend radially inward at the second end to a radial position that is coincident with the contrast member.