MKII Pump - from Amazon thrust washer?

[Noob_Brewer]

So I took my MKII pump from Amazon (Gile house brew supply branded) out of box hooked it up and had no issue priming etc but it seemed to “rattle” a bit. Took it apart and I didn’t see a thrust washer. I thought this pump had one. I was careful to watch if anything fell out when I unscrewed the head. Nothing.

Anybody can confirm? Also looking for thrust washer replacement help/links in the interim if it indeed was suppose to have one