The South African Railways Class 25NC 484 of 1953 was a class of steam locomotives built between 1953 and 1955 for the South African Railways. The Class 25NC was the noncondensing version of the Class 25 condensing locomotive, of which ninety were placed in service at the same time.
Class 15F was the most numerous steam locomotive class in South African Railways service. Between 1938 and 1948, 255 of these locomotives with a 482 Mountain type wheel arrangement entered service.