On Thu, 19 May 2011 08:47:43 -0700 (PDT), N8N
wrote:

this is actually work related... and I am googling furiously but
figured I would post and see if someone could say "Oh, that's a Raco
part no. xxxxx" or something like that. I find myself in need of a
small quantity of plates, similar to a flat mud ring, but with a
flange - reason I need them is installer cut in 1900 boxes into
ceiling tile for devices that are actually single gang size. If they
were painted white that would be even more splendiferous, but spray
painting is an option. (only need about 25 of them.)

I read your message again, and assume that the existing boxes are
already installed.

I would assume you need a flat plaster ring and use an oversized cover
maybe

http://www.youtube.com/watch?v=Dt7YrENi1-A