Aerospace manufacturers track and deliver major assemblies in complete sets destined for a specific airframe. A shipset contains exactly the quantity of a specific part or system needed for one vehicle, such as four engines for a heavy jet or a complete set of landing gear struts. Grouping parts this way ensures that matched components stay together during final assembly and simplifies supply chain logistics.
We're waiting on the final engine pylons before we can deliver the complete shipset to the assembly line.
Suppliers often quote their production rates in shipsets per month rather than individual part counts to give a clearer picture of how many complete aircraft they can support.