interchangeability

noun

in·​ter·​change·​abil·​i·​ty ˌintə(r)ˌchānjəˈbilətē 

-ətē, 

-i

: the quality or state of being interchangeable

standardization and interchangeability of parts has taken place in a series of small steps

—A. D. H. Kaplan

interchangeability of mass and energy, which has become an essential principle in physics

—Bertrand Russell

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