Not really Sir,because"Nevertheless" is a transition Like "However" that links two clauses, showing a logical relationship between them yet "Nevertheless" indicates concession I mean something that is unexpected or surprising like saying:"I'm afraid of flying nevertheless I take the airplane once a month to Algiers".the second statement is a surprise so we can use Nevertheless.On the other hand, "However" can indicate both concession and contrast like saying:"I live in Algeria however my best friend lives in England".So, you can always replace "nevertheless" with "however," but you can't always replace "however" with "nevertheless"....I hope you can see the difference now