559	MASS TRANSPORTATION - RAIL VEHICLE PARTS AND ACCESSORIES
55905  *	Air Conditioning
55910  *	Body Panels, Frames, and Parts
55915  *	Brake Systems
55917  *	Brushes, Carbon
55920  *	Couplers
55925  *	Current Collecting Systems
55930  *	Door Operators
55935  *	Drive Motors and Accessories
55940  *	Electrical Accessories and Parts (Not Lighting)
55945  *	Glazing/Mirrors
55955  *	Lamps/Lighting, Interior and Exterior
55960  *	Reflectors
55965  *	Seating and Upholstery
55967  *	Shock Absorbers, Rail Vehicles
55970  *	Signage
55975  *	Special Parts (Not Otherwise Identified)
55976  *	Switch Stands
55977  *	Tools, Railroad (Power)
55978  *	Tools, Railroad (Non Power)
55979  *	Track Hardware (Plates, Joint Bars, Spikes, Clips, Bolts, Nuts, etc.) (See Class 570 for Rails)
55980  *	Traction Power
55990  *	Wheel and Axle Assemblies