Male fluid connection element comprising: - a male body, centered on a longitudinal axis, defining a forward longitudinal direction and comprising: ∘ a tubular extension centered on the longitudinal axis, delimiting an inner conduit and having an outer radial face, and ∘ a crown arranged in a fixed manner around the tubular extension and having at least one radial recess, each radial recess opening onto an inner face and onto an outer face of the crown, the inner face of the crown and the outer radial face of the tubular extension radially delimiting an annular space between them; - an integral ring which is mounted around the crown; - for each radial recess, a locking element of which radially outward movement into the associated radial recess is limited by an outer stop formed by the ring at a junction between a notch (100; 301; 452) of the ring and an outer face of the ring, each locking element being movable in the radial recess thereof between: ∘ an inner position, in which the locking element projects from the inner face and outer face of the crown and does not project from the outer face of the ring, and in which movement of each locking element radially inwardly into the associated radial recess is prevented by an inner stop formed by the male body, and ∘ an outer position, in which the locking element projects from the outer face of the ring, wherein, when the ring is mounted on the crown, - the male body faces a rear face of the ring in the forward longitudinal direction, and - the ring faces the male body or at least one locking element in the forward longitudinal direction, at least when said locking element is in the inner position, characterized in that: - each radial recess is delimited by an inner wall forming part of the crown, the inner wall extending around a radial central axis of the radial recess; - the ring has at least one longitudinal slot (100; 300; 450) which passes radially through the ring and opens onto the rear face of the ring; - the ring comprises a resiliently deformable end portion (112; 308) delimited by the longitudinal slot (100; 300; 450) and the rear face of the ring; and - a free end (91; 311; 404) of the end portion (112; 308) comprises at least one inner tooth (90; 309; 402; 460) which, when the ring is mounted on the crown, is engaged in an outer groove (60; 310; 400), provided in the outer face of the crown. - a male body, centered on a longitudinal axis, defining a forward longitudinal direction and comprising: ∘ a tubular extension centered on the longitudinal axis, delimiting an inner conduit and having an outer radial face, and ∘ a crown arranged in a fixed manner around the tubular extension and having at least one radial recess, each radial recess opening onto an inner face and onto an outer face of the crown, the inner face of the crown and the outer radial face of the tubular extension radially delimiting an annular space between them; ∘ a tubular extension centered on the longitudinal axis, delimiting an inner conduit and having an outer radial face, and ∘ a crown arranged in a fixed manner around the tubular extension and having at least one radial recess, each radial recess opening onto an inner face and onto an outer face of the crown, the inner face of the crown and the outer radial face of the tubular extension radially delimiting an annular space between them; - an integral ring which is mounted around the crown; - for each radial recess, a locking element of which radially outward movement into the associated radial recess is limited by an outer stop formed by the ring at a junction between a notch (100; 301; 452) of the ring and an outer face of the ring, each locking element being movable in the radial recess thereof between: ∘ an inner position, in which the locking element projects from the inner face and outer face of the crown and does not project from the outer face of the ring, and in which movement of each locking element radially inwardly into the associated radial recess is prevented by an inner stop formed by the male body, and ∘ an outer position, in which the locking element projects from the outer face of the ring, ∘ an inner position, in which the locking element projects from the inner face and outer face of the crown and does not project from the outer face of the ring, and in which movement of each locking element radially inwardly into the associated radial recess is prevented by an inner stop formed by the male body, and ∘ an outer position, in which the locking element projects from the outer face of the ring, - the male body faces a rear face of the ring in the forward longitudinal direction, and - the ring faces the male body or at least one locking element in the forward longitudinal direction, at least when said locking element is in the inner position, - each radial recess is delimited by an inner wall forming part of the crown, the inner wall extending around a radial central axis of the radial recess; - the ring has at least one longitudinal slot (100; 300; 450) which passes radially through the ring and opens onto the rear face of the ring; - the ring comprises a resiliently deformable end portion (112; 308) delimited by the longitudinal slot (100; 300; 450) and the rear face of the ring; and - a free end (91; 311; 404) of the end portion (112; 308) comprises at least one inner tooth (90; 309; 402; 460) which, when the ring is mounted on the crown, is engaged in an outer groove (60; 310; 400), provided in the outer face of the crown.