Control rod drive shaft guide.

摘要

A control rod drive shaft guide (10) comprises an annular shaped body (12) to be inserted through a hole in a guide structure card (32) and having spring loaded arms (40) pivotally mounted in the body (12). The arms (40) snap outwardly to retain the guide in place. The guide has an exterior groove (18) to receive removal tooling, which tooling can engage release tabs (52) to cause retraction of the arms (40) to permit removal of the guide (10) from the card (32).