The Washer 4.7x10x1 is the lowest priced item on this 029 - Intake schematic.
Parts such as the 029 - Intake: Air Manifold External L.h., Hose, Drain, Resonator, Air Intake, Air Manifold Internal R.h. are included in the Streetfighter 2014 (streetfighter 848) D120-00014 029 - Intake parts fiche.
In this schematic the "Screw" is used most often.