No, 61x is for the superjet 61x 701 cylinder and the 62T is for 62T 701 raider and 64X 753cc cylinder.
The 61x gasket has 8mm bolt holes with a smaller port and a little lower, the 62T gasket has 10mm bolt holes with a larger port and higher a port. So it's pretty bad mis-match.
They can be interchanged to run when you don't have anything to use and you NEED to ride that weekend as the sealing surface will just barely seal, as long as you have perfect sealing surfaces!
I wouldn't trust it more than that.