Assembly comprising a nut and a retaining system for said nut, mounting system comprising at least one such nut and the retaining system therefor

An assembly comprising:

• a nut having a first body which extends between first and second end faces and comprises a hole which is at least partially tapped and which opens out in a region of the first end face, and
• a retaining system configured to retain the hole of the nut substantially in an extension of a through-hole of a part which opens out in a region of a contact face of a part in contact with the first end face of the nut during operation,
• wherein the retaining system and the nut comprise shapes which cooperate to connect the nut and the retaining system,
• wherein the retaining system comprises at least two resilient tabs which are configured to be housed in the through-hole of the part, each resilient tab comprising a free end and being configured to adopt an undeformed state and a deformed state in a resilient manner, the free ends being positioned, in the undeformed state, on a circle having a greater diameter than an internal diameter of the through-hole, in that the nut has an axis of rotation and comprises at least two radial extensions which extend from the first body in a radial direction perpendicular to an axis of rotation and which are distributed evenly about the nut, each radial extension having a bearing face which is positioned in a transverse plane perpendicular to the axis of rotation,
• wherein the retaining system further comprises a second body positioned about the first body of the nut,
• wherein the cooperating shapes comprise at least two radial projections which are fixed to the first body of the nut and, for each radial projection, an aperture passing through the second body of the retaining system, and
• wherein the second body comprises, for each aperture, a slot which is configured to permit each radial projection to penetrate into the corresponding aperture.