a method and apparatus for removably attaching a top nozzle to a nuclear fuel assembly to permit easy access to the fuel rods . the quick disconnect top nozzle structure includes guide thimbles which are clearance fitted into an adapter plate of the top nozzle . load collars are attached to the guide thimbles to support compressive loads such as those imposed by holddown springs . tensive forces , such as lift forces , are transferred through the top nozzle into peripheral straps of a top spacer grid . the peripheral straps include extensions which resiliently latch onto the top nozzle for ease of assembly and disassembly .