The scheme used here is similar to the scheme used for EMU middle cars. There are really a wast number of version tags. K indicates heating system that automatically selects 1000V or 1500V and hooks for ferry transport. All carriages for Copenhagen are required to have this version tag. Norwegian passengers usually prefer the -2 cars.
V indicates that the carriage has two axles.
Fourth is the serial number which I've not included in this file. I have divided the NSB cars into 3 main generations. Aluminium used for frame Differ a lot visually from former generations. Prepared for tilting. The table below lists all the NSB carriages used in passenger trains.