Washer

washer is a rubber ring with a rectangular cross-section. There are also common names for square-cuts, lathe cuts and square-rings washers available on the market. The size standard specifications and groove design of washers are the same as O-Ring's AS 568, but due to the simple configuration of the product, it is quite easy to customize the design. Compared with O-Rings, washers are more capable of withstanding relatively higher pressure environments and they have a better service life. Washers are often used to replace O-Rings.

Catalog: https://www.gmors.com/files/CatalogDownload/file/VJ/Washer-Standard-Size.pdf

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