RIV bearings

Does anyone have an equivalence list for RIV bearings to any modern manufacturer (FAG - SKF - NSK etc) as the old part books for singles only give RIV numbers.RIV were bought out by SKF in the 70’s.
Please don’t tell me I don’t need them, I can just go to the local bearing shop etc etc and anyway I know the relevant numbers for my bike, I’m just inquisitive