Oil change part numbers needed

[Scotty C]

New owner here. When I change the oil on my 1996 MZ Skorpion I will need some parts numbers. There's quite a few actually, since I want to pull that large particle screen on the inlet pipe too. The 145 oil filter is covered.
What is the Yamaha part number for the two oil cover O-rings (one large, one small - the actual oil filter location)?
What is the part number for the single O-ring that is behind the oil delivery pipe (next to the sump drain plug, comes from the tank under the seat)?
What is the sump plug washer part number?
The large particle screen on the inlet pipe appears to have two washers on either side of the banjo bolt. What are they? (I don't plan on doing this screen routinely, but having never checked it, I probably should.)