In the IPB manual, parts are identified by which numbers?

• A. Serial number and lot number
• B. Figure number and index number
• C. Part number only
• D. Manufacturer code

Answer: (B)

Parts in an Illustrated Parts Breakdown are identified by the figure number and the index (item) number. Each figure shows a drawing of a specific assembly, with parts labeled by numbered callouts. The index number is the unique reference for each part within that figure, so pairing the figure number with the index number lets you pinpoint the exact part in the illustration and then find its description and part number in the listing. Serial numbers and lot numbers are used for tracking individual items, not for identifying parts in the IPB. While a part number may appear, the standard identification method you use in the IPB is the figure number together with the index (item) number.