Hitler named it the National Socialist Party in part to tick off and confuse the other socialist and communist parties in Germany at the time and pick off more of their voters. They were a far right party but emphasized the re-invigoration piece during the Wiemar years and then focused on nationalism of war industries and/or collusion with them and other industries in the pre-war and war years.
So some leftist ideas but mostly right, the darkest econ ideas of the Nazis weren't even that left but more dark, slave labor, camps, forced servitude, etc. That doesn't really fit in with any ideology except barbarianism.
Yes, it wasn't really uncommon for minor far-right parties at the time NSDAP was still forming to use terms "socialist", "revolutionary" or "working", trying to capitalize on increased left-wing sentiments post WWI.
Putting everything else aside, there were elements within the NSDAP that were clearly to the left economically, with a very anti-capitalist zeal. I'm talking about those element that were purged in 1934. After Hitler allied himself with plutocrats, and then made up with Reichswehr generals, there was nothing remotely "left-wing" to speak of.
People tend to sometimes confuse big spending, something Nazis did, with "left-wing" ideology. It's idiotic simplification.
