If you want to get an idea of the variations on a theme, have a look at military supply identifiers and classification. There's an enormous range of just about

If you want to get an idea of the variations on a theme, have a look at military supply identifiers and classification. There's an enormous range of just about anything, including tape. Another example is paper. And in the past, typewriter ribbons. https://en.wikipedia.org/wiki/NATO_Stock_Number https://en.wikipedia.org/wiki/NATO_Stock_Number (which despite the name is used by USA and many other defence forces)