Ok on one both sides say 891L and one side also has a 255, then the other says clz.
The second one has 890 then cbw, then on the opposite side say 117 then a symbol or something I cant make out
The part numbers you listed breakout to part number 2535890 and 2535891
891L (left side)
890R (right side)
These are .850 in diameter and were installed on /6 with air or 318 without air.