Weidmueller LID 6,0F5 RF

The Weidmüller LID 6,0F5 RF is likely an insulated ring cable lug.  It's probably designed for a 6.0 mm² cable and has an M5 stud size.  The "F" and "RF" designations likely refer to specific material or design features of the lug.  These lugs are used for making reliable and secure electrical connections in various industrial applications.  For the most accurate and detailed information, including material composition, dimensions, and specific application recommendations, it's essential to consult the official Weidmüller documentation or contact their customer support directly.