Which of the following is not an item associated with FSC 17?

FSC 17 refers to items involved in aircraft launch and recovery equipment. This category includes components essential for the efficient and safe operation of aircraft on and off naval ships, as well as ground support during various operations.

Medical supplies, while crucial for overall military operations, do not fall under the umbrella of FSC 17. They are categorized differently, more closely associated with health care logistics and support. The focus of FSC 17 is primarily on the systems and equipment directly related to the launching and recovery of aircraft, which includes both launching systems and ground handling equipment.

In contrast, the other items listed—aircraft launching systems, ground handling equipment, and aerodynamic testing equipment—are all integral to the aircraft operation and maintenance processes, directly aligning with the functions and responsibilities associated with FSC 17. This is why medical supplies are identified as the correct choice for not being associated with this specific Federal Supply Class.