Find another motor supplier Bob, I ran into the same thing. Had
to wait for them to restock the bin cuz they hadn't used any
for a long time. Those are pretty much standard size brushes
for most fractional motors. Most people just replace the motor
now days but the brushes are available, they just might have to
order them for you.
http://www.pbase.com/dennygraham/image/114233239 DG