Which component typically includes a quantity specification in maintenance documents?

The component that typically includes a quantity specification in maintenance documents is the part number. Part numbers are unique identifiers assigned to specific items, detailing not only the item itself but also its specifications, which may include the quantity required for maintenance tasks. Each part number is associated with particular components used in aircraft maintenance, and documents will often specify how many of each part are needed to perform repairs or maintenance services.

In contrast, nomenclature refers to the descriptive name given to items, which provides a general understanding of what the item is, but does not specify quantities. The source maintenance code indicates the supply source and maintenance level but does not include specific quantity details. Usable on codes identify the specific systems or applications for which the part is intended but again do not include quantity specifications. Hence, part numbers stand out as the component that legitimately outlines quantity requirements in maintenance documentation.