What is Army 19D called, and is it the same as "19 Delta"?
Yes — they are the same job. 19D is the Army Cavalry Scout MOS; "19 Delta" is how the code is said aloud, spelling the trailing "D" with the NATO phonetic alphabet. Whether you search "19D" or "19 Delta", the requirement on this page is the same: AFQT 31 and CO of at least 77.