A 530 oring chain will rub unless you make modifications to the front sprocket to gain about 1/8 inch extra clearance from the engine casework.
A 520 oring chain will work if you replace the sprockets to match the 520 roller width. Same is true for 520 standard chain.
A 530 standard chain was the stock chain on the CB500 and 550 and fits without issues, of course.
Cheers,