Mazda Forum - Mazda Enthusiast Forums - In-tank fuel pump and filter seal confusion

I have a 1999 Mazda 323 BJ HBK Astina 1.6U Au car. My problem stems from the fact that I want to replace the in-tank fuel filer (Ryco Z648, I believe) and the fuel pump.

I have both items, but from the look of the attached manual page, there should a spacer and a seal between the fuel pump and the fuel filter. (The manual that the page comes from is the Mazda-323-Familia-1998-2003-workshop-manual. I believe that should be the same as my car).

Can anyone confirm that, and if so, what the part numbers are, and where I can get them. Neither the pump or filter that I got had any seals at all.

Thanks