KSB 01014181 is a mechanical seal reference with the designation M7N/..-00 Q1AVGG. The M7N design is a single, unbalanced pusher seal with a rotating Super-Sinus spring and is independent of shaft rotation direction. The specified material combination includes sintered silicon carbide for the rotating face (Q1) and antimony-impregnated carbon graphite for the stationary seat (A), with FKM secondary seals (V). The shaft diameter and installation dimensions must be confirmed against the pump before selecting a replacement. The corresponding KE MOTION HYDRO product reference is NV-3.