Interchangeable Parts

The Heart of Industry!

The soul of mass production

Invented by Eli Whitney, the invention of interchangeable parts was the start of mass production in America. Being able to change broken parts of a product was huge in industry.

About the invention

Interchangeable parts were originally made for muskets in the U.S military. This was important because people could change individual broken parts of a product without having to throw out the whole thing. The invention of interchangeable parts is still used and is very popular today.

The Inventor

Eli Whitney developed interchangeable musket parts in 1798 for the U.S. military. He was allowed to do this because of his reputation as the inventor of the cotton gin.


Interchangeable parts affected the world by making the repair of broken products extremely quick and easy. It made the production of good faster and work life easier.
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