Your picture of parts has a couple that mine doesn’t have. I added a yellow arrow below and then yellow highlighting in the section with the hub seal.
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In mine that little section with the hub seal only had the seal and the dust shield. It looks like there is another washer. It kind of looks like this one in another picture you posted:
Now the middle section under the yellow arrow has what looks like that snap ring, but it also has another part that I can’t make out. It sort of looks like a brass cylinder about the diameter of a finger. What’s that called and what it for?