Self-locking nut for use in aircraft, has nut body mounted by screwing on screw and nut washer, where washer has detent tooth engaged in notches arranged in notched radial collar at base of nut body

摘要

The nut (1) has a nut body (2) mounted by screwing on a screw and a Belleville (RTM: Lock washer) (3), where the body has a notched radial collar at its base. The washer has an axial tab extending from its inner peripheral edge and configured to be engaged in a slit or groove arranged axially in the screw for locking the washer in rotation with respect to the screw. The washer has detent tooth engaged in notches arranged in the collar of the nut body.