Abstract: An annular locking ring for use on an aircraft wheel that has a pair of separable wheel sections wherein the locking ring has a lobe section and a leg section. The cross-sectional shape of the leg section has a pair of spaced linear portions that are interconnected at their one ends while the cross-sectional shape of the lobe section has a curvilinear portion and a linearly extending portion that intersects one of the linear portions of the leg section. The curvilinear portion of the lobe section has one end that merges with the other one of the spaced linear portions. The extension of the one linear portion of the leg section makes an acute angle with the linear portion of the lobe portion. Alternatively, the lobe section may have two spaced linear portions separated by the curvilinear portion with one of such linear portions merging with one linear portion of the leg section and with the other one of such linear portions of the lobe section intersecting the other linear portion of the leg section.