http://en.wikipedia.org/wiki/Boiled_eggs#Storage
Storage
Peeled hard boiled eggs can be stored in the refrigerator in a bowl of cold water to cover for about 1 week (change the water daily) - or in a sealed container without water (cover the eggs with damp paper towels) for the same length of time.
Hard-boiled eggs in their shells can be stored in the refrigerator for 2-3 weeks.[6]
Hard cooked eggs may be kept in the refrigerator for up to one week.[7][8]
Yolks can be covered with cold water and refrigerated, tightly covered, for up to 3 days. Tightly covered egg whites can be refrigerated up to 4 days or frozen for 6 months.[9]
Studies done at the American Egg Board substantiate that unopened containers of brined or pickled eggs (marinated, hard-cooked eggs) keep for several months on the shelf. After opening, keep refrigerated. [10]