The most reasonably priced component used on the C90d 1992 (n) Japan Ha02-180 F-12 is the Screw-washer,5x10.
A sample from the products for the F-12 include: Tank Comp,*g141m* (jdm), Screw-washer,5x10, Tank Comp*rp133m* (jdm), Tank Comp.*b116m* (jdm).
This schematic depicts all components used in the C90d 1992 (n) Japan Ha02-180 F-12 partslist.