Spare parts

A spare part, also referred to as a service part, repair part, replacement part, or simply a spare, is an interchangeable component stored in inventory for use in repairing or restoring defective equipment or machinery. Spare parts play a vital role in logistics engineering and supply chain management, often supported by specialized systems for spare parts management.

The concept of spare parts originated from the industrial revolution's advancements in interchangeable parts and mass production.

In industrial settings, spare parts are classified in various ways to highlight their distinct features and functionalities. Below is an outline of different types of spare parts and their typical roles.