Simple in shape, the O-Ring is most commonly used in static sealing applications where simple, cost-effective leak tight performance is required. O-Rings can be supplied against all internationally recognised size standards, and can be produced in all aerospace type elastomers. These include Nitriles (NBR), Ethylene Propylene Dieme Monomers (EPDMs), Fluorosilicones (FVMQ), Fluorocarbons (FKM) and Perfluoroelastomers (FFKM), including the almost universally chemically resistant Isolast®. Non-standard sized O-Rings are available on request. In addition, special O-Rings can be supplied with their flashline in a specified position on the seal or inspected to stringent criteria, if required.