This part of BS 5892 specifies requirements for the manufacture, inspection and testing of rolled or forged monobloc wheels in the unmachined, finish machined or ready for assembly condition for traction and trailing stock. This Part of BS 5892 includes requirements for the dimensions, tolerances and surface finish that are to be adopted unless otherwise specified in the design drawing.

BS 5892‑3 is not applicable to wheels to be fitted to axles designed to BS EN 13103 and BS EN 13104, the manufacture, inspection and testing of which are specified in BS EN 13261.