It’s best practice to know how much shelf life remaining your o-rings have as you purchase them. To do this, you need to know the type of elastomer used in the gaskets. Once you have that, you can then quickly determine the o-rings shelf life.
Do you often purchase aircraft material that's dangerous goods?
Have you ever experienced a delay? An issue? Or even working with others who can't ship HAZMAT?
Maybe you even received HAZMAT material that shipped with the wrong paperwork, had poor packaging, the cargo carrier bumped your shipment, or you had no idea it was HAZMAT.
The list of potential problems is endless. But more importantly...