I am working on set 21327 and found a new mold number 60591 for part 41530. It
has a new PCC as well: 6289758
The molds appear nearly identical except for the spoke pattern on the center
axle hole. The variations are exactly the same as the what has been previous
found on part 4265c.
Unfortunately, the weight is also different. 41530 weighs 2.40g on my scale and
the newer version weighs only 2.05g.
Please add 60591 as an alternate number unless you would prefer a new catalog
entry.