Top one is a Winchester Single Shot extractor.  If you're lucky, it may have a caliber stamped on it.  The squarish bossed reverse side typically comes with .22 rimfire chambering, but the extractor hook in these cases typically cradles the rim at the bottom.  Next down appears to be a "Kicking Extractor" for a Stevens 44 or 44-1/2 in .22 rimfire.  The size of the pivot hole will determine which.

The third looks like a Stevens Favorite extractor.  There were several different designs of this.

The fourth looks to be a Stevens 44 "7-o'clock" extractor, from the limited view.

The next I don't know.  The last looks like a trigger spring or something.

A copy of de Haas' Single Shot Rifles and Actions is invaluable in situations like this.

Here is a picture reference from Wisners who makes Stevens extractors.  The top Winchester is most likely for a .22 as the one I have with the same shape is so marked.