What does OTS stand for in manufacturing terminology?

• A. Over-The-Shelf
• B. On-The-Shelf
• C. Off-The-Shelf
• D. Out-The-Shelf

Answer: (C)

OTS stands for Off-The-Shelf, referring to standard, readily available items you can buy from catalogs or suppliers without custom engineering. This designation emphasizes speed and cost advantages, since these parts are already manufactured and stocked, allowing quick procurement for a project. It’s used to contrast with parts that are made-to-order or specially engineered for a particular application, which take longer and cost more. The other phrases aren’t used in this context, as they don’t describe standard catalog items.