The Screw-washer,4x14 is the lowest priced item on this Carburetor schematic.
The Screw-washer,4x14 is the most widely applied product in the NH50MS AERO 1990 (L) GERMANY KPH MK CARBURETOR ( two times ).
Parts such as the Carburetor: Cap,cable Sealing, Jet,main, #88, Chamber Set,float, Jet,slow,#38 are included in the Nh50ms Aero 1990 (l) Germany Kph Mk Carburetor parts fiche.