Well i saw 5995 on the 96 a block away from my house yesterday not that it matters much since we know now there up to 5996 but i wanted to say it for the hell of it B)
I got a few here while i was in downtown today
You can add
5964 i saw it on the 27
5975 i saw it on the 29
and for the newer ones
5986 i saw it on the 41
5988 i saw it on the 27
5991 i saw it on the 34M
This ain't much but look here
http://www.nyctransitforums.com/forums/f184/security-shield-5953-96-a-34397.html#post513971
when i took a picture of the shield on the 5953 you can see leather seats.