Clutch hub lateral movement tolerance

My question is what amount of lateral movement is within spec for the clutch hub assembly, with the mainshaft nut secure?
( the distance the hub can move inboard or out from the inner primary cover.)
I found my clutch not holding adjustment, and after inspection, found that the nut that holds the hub to the shaft had backed off slightly. Tightened, and found LOTS of lateral movement in the entire hub/basket assembly.
Did I lose the circlip on the shaft behind the basket? I suspect so, but what are the correct tolerances for the right fix?
Thanks, Snortin Norton
'74, 850 Commando

NO slack is the "Normal". Too much slack is common. I'd suspect the nut on other end of clutch main shaft might of backed off. Circlip bent by too much nut torque doesn't give more clutch on shaft slack, just the nut never seems to snug up enough
as it pushes spacer further over the distorted circlip, till clutch can rub on inner case. Remover outer cover and see, but still worth a check on clrclip, which might be bent over trying to get the shaft slack out.