Revisions are assigned when a blob is uploaded to the store and are not channel specific. You may never publish a revision to any channel or publish the same revision to all the channels.
As for your question, I think that would install that specific revision while tracking latest/stable:
zyga@novigrad:~$ sudo snap install powershell --classic --channel=latest/stable --revision 264
[sudo] hasło użytkownika zyga:
powershell 7.4.1 from Microsoft PowerShell✓ installed
zyga@novigrad:~$ snap info powershell | grep tracking
tracking: latest/stable