LSN<p>Lot Serial Number: A serial number is a unique number assigned to identify a specific item. A lot number is an identification number assigned to products indicating the batch or lot in which the product was manufactured or processed.</p> <p>See also: <a href="https://www.finaleinventory.com/inventory-management-basics/what-is-the-difference-between-lots-and-serial-numbers">LSN</a></p>