Anterior part of a nacelle of a propulsion assembly of an aircraft (A), said anterior part (P1) having a front end allowing air to enter and a rear end intended to be connected to the rest of the nacelle, said anterior part comprising: - an air intake lip disposed at said front end and comprising a leading edge and an outer part and an inner part that are delimited by said leading edge , - an outer panel that extends the outer part of the air intake lip, said outer panel and said outer part of the air intake lip together forming an outer wall of the anterior part (P1), - an inner structure that extends the inner part of the air intake lip, - a front frame disposed behind the air intake lip and connecting said outer wall to said air intake lip or to said inner structure , said front frame comprising a first peripheral edge connected to said outer wall, and a second peripheral edge connected to said inner structure and/or to the inner part of the air intake lip, - a mounting element of the outer wall of the anterior part (P1) that extends inside the anterior part (P1) and projects from an inner surface (13; 41) of the anterior part (P1), wherein said front frame and the mounting element of said outer wall of the anterior part (P1) are connected to one another by assembly means located in an inner zone of said anterior part (P1) such that said assembly means do not penetrate said outer wall, said mounting element taking the form of a fastening tab of which a second end is fastened to the first peripheral edge of the front frame by said assembly means, characterized in that the mounting element is formed in one piece with the air intake lip or the outer panel , and in that said air intake lip or said outer panel has a Y shape. - an air intake lip disposed at said front end and comprising a leading edge and an outer part and an inner part that are delimited by said leading edge , - an outer panel that extends the outer part of the air intake lip, said outer panel and said outer part of the air intake lip together forming an outer wall of the anterior part (P1), - an inner structure that extends the inner part of the air intake lip, - a front frame disposed behind the air intake lip and connecting said outer wall to said air intake lip or to said inner structure , said front frame comprising a first peripheral edge connected to said outer wall, and a second peripheral edge connected to said inner structure and/or to the inner part of the air intake lip, - a mounting element of the outer wall of the anterior part (P1) that extends inside the anterior part (P1) and projects from an inner surface (13; 41) of the anterior part (P1), wherein said front frame and the mounting element of said outer wall of the anterior part (P1) are connected to one another by assembly means located in an inner zone of said anterior part (P1) such that said assembly means do not penetrate said outer wall, said mounting element taking the form of a fastening tab of which a second end is fastened to the first peripheral edge of the front frame by said assembly means, characterized in that the mounting element is formed in one piece with the air intake lip or the outer panel , and in that said air intake lip or said outer panel has a Y shape. <EOS>