Definition
A spare part is a physical component held in inventory to be installed into an asset (replacing a worn, failed, or removed original part) during corrective repair or planned maintenance. It is the individual physical item, distinct from a bill of materials, which is the structured list of which parts belong to a given asset or assembly.
Key facts
- An individual physical item held in stock, not a list or catalog entry describing it.
- Used both in planned maintenance (scheduled replacement) and corrective work (replacing a failed component).
- Availability directly affects first-time fix rate and MTTR: a needed part not in stock delays the repair.
- Classified by criticality (see critical spare) to guide how much inventory investment each part warrants.
What information does Spare part preserve?
A spare part is a physical component (a bearing, a gasket, a sensor, a circuit board) kept in inventory specifically so it can be installed to restore an asset's function, whether replacing a part that has failed or one being replaced as part of a scheduled maintenance task.
How do maintenance teams use Spare part?
A bill of materials is the structured list identifying which specific parts, by part number and quantity, belong to a given asset or assembly. A spare part is the actual physical item that list refers to: the bill of materials tells you what to stock and how many, the spare part is the physical stock itself.
FAQ
Frequently asked questions
What is a spare part provided for restoration?
A spare part is a physical component held in inventory to be installed into an asset, replacing a worn, failed, or removed original part during corrective repair or planned maintenance.
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