Will M/T 9555 tube fit 9554 tire?

[Socom688]

I need some help. The tubes in my M/Ts are shot. They say they use 9554 tubes, but from what I have read on teh web, 9555 should fit fine, but I am too uncertain to just cough up the doe yet. Any experience with this? My M/Ts are 28'' x 10.5'' x 15''