A-A-52509 Hook, Towing: Light \(For Vehicles 7.26 To 13.62 Metric Tonnes\) \(Metric\)This CID covers the requirements for a light towing hook for use when towing vehicles weighing from 7.26 to 13.62 metric tonnes. The towing hook, herein referred to as "hook", interfaces with a towing lug which is attached to the vehicle to be towed.