Now it's time for cleaning and inspection. After drying the parts, inspect them closely. The castle nut, washer, and bearing cap will most likely be OK, so just place them aside. Check the bearings for discoloration, pitting, and excessive play. If they are suspect at all, chuck them in the trash and plan on using a new set.
Bearings are too cheap to try and salvage marginal ones.
You may want to just go ahead and replace the seals now too. The cleaning and inspection is mostly done, but a couple of things remain. Using a handful of paper towels, clean the grease out of the inside of the hub and wipe down the axle shaft. Inspect the hub and axle carefully too. The hub houses a pair of pressed in bearing races.