Pedantic: 1 atm = 1.01325 bar (exactly). They're nearly equivalent units, even more so when you consider that Earth's atmosphere varies by more than 1.325% on a given day. But in a strict sense they're not the same.
The US survey foot, as you probably know having brought it up but elaborating for the audience, is the old US foot before it was averaged with the British foot to create the international foot. It is 500000/499999 international feet.