This item is no longer being sold separately by manufacturer. If you need to replace this item you will have to buy the complete nozzle.

Replacement Nozzle Stem and Spring for Paramount PCC2000® Nozzles.

Disassembling the Nozzle:
Hold the top part of the nozzle in your left hand firmly and then grasp the stem with your right hand. As you hold the top part of the nozzle in place you will turn the stem counter-clockwise a quarter turn. At this point you can pull the stem out (away from the top part).