The Bolt,flange,nshf, is the most widely applied product in the CRF250R 2008 (8) JAPAN ME10-140.141 F-9 ( four times ).
A sample from the products for the F-9 include: Retainer,brkt, Pin,hanger, Pin,bolt, Caliper Sub Assy,.
The O-ring,2.5x1.5 is the lowest priced item on this F-9 schematic.