The part number 330904-00-09-05-02-00 is a Bently Nevada 3300 NSv Proximity Probe, a specialized eddy current sensor used for machine condition monitoring in applications where standard probes have limited space. The number specifies a probe with an M8X1 thread, a case length of 9 inches, a 0.5-meter extension cable, a miniature coaxial ClickLoc connector, and no agency approval. This system is designed to measure radial vibration, axial position, and phase reference on machines like compressors, and it can replace older Bently Nevada or 3000/7000-series systems.