The Nut is the lowest priced item on this Rear Swinging Arm schematic.
With all the components that make up the VL1500 BOULEVARD C90 2008 (K8) USA (E03) REAR SWINGING ARM assembly. The Bearing(20x27x23.5) is the most frequently specified with two applications.
Parts such as the Rear Swinging Arm: Boot,propeller Shaft, Nut, Bearing(17x40x13.25), Bearing(20x27x23.5) are included in the Vl1500 Boulevard C90 2008 (k8) Usa (e03) Rear Swinging Arm parts fiche.