Here's what I have (gleaned from a number of sources - some I measured and compared with a chart I found at
http://www.oringsUSA.com)
Application ------------------------- Size
Turbo Pedestal Supply o-rings --- –205
Turbo Pedestal Return o-rings --- –211
Fuel Drain Valve o-rings ---------- –202
Fuel Drain Valve Stem o-rings --- –013
HPOP hose/plug o-rings ---------- –906
IPR O-ring (large) ----------------- -114
IPR O-ring (small) ----------------- -012
Locking Hub external o-ring ------ -152
Locking Hub dial o-ring ----------- -142
o-rings for HP oil should be Viton 90 durometer.
I'll move this up into the 7.3L Engine & Drivetrain FAQ forum. Feel free to add more info.