Which wheels are typically not interchangeable?

Demountable flange wheels are specifically designed with a unique bolting or clamping mechanism that allows them to be easily removed from the aircraft when servicing or replacing tires. This feature makes them less common and typically non-interchangeable with other types of wheels. Unlike standard fixed wheels or split wheels, which can often be swapped out on various aircraft, demountable flange wheels possess specific designs and dimensions tailored to particular installations and aircraft types. This specialization in their design limits their interchangeability across different models, making them distinct within the category of aircraft wheels.

In contrast, the other options usually share compatibility or standard designs that allow for interchangeability among different aircraft or wheel assemblies.