Parts such as the Air Cleaner: Mark,air/c Cautio, Seal,air Cleaner, Bolt,flange 6mm, Tube,vinyl,8x12x5 are included in the Nsr125r 1990 (l) France / Kph Air Cleaner parts fiche.
The component with the lowest price in the AIR CLEANER schematic is the Bolt Washer 5x20.
The Air Cleaner assembly is constructed from several parts from which the Case,air Cleaner is the most expensive.