In this schematic the "Washer, Plate" is used most often.
Parts such as the 30 Meter: Washer, Plate, Case, Upper, Speedometer Assy, Speedometer Cable are included in the Nxc125 2009 4p95 Europe Cygnus X 1h4p9-300e1 30 Meter parts fiche.
The sub assemblies and components that make up this 30 Meter include this Speedometer Assy, the most expensive part.