White marks in four locations, equally spaced
A nonmetallic circular item with an aperature, having a solid round cross-section. They are used primarily for sealing. For items with other than round cross section, see packing,preformed. For noncircular items with a round cross-section, see seal,nonmetallic round section and rubber,round section.
Classification: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 4140-01-094-1621
NSN 5835-00-518-2740
NSN 6650-00-854-0265
NSN 5998-01-507-8647
NSN 6650-01-471-2171
NSN 5930-00-757-2812
NSN 6620-00-553-8988
NSN 6150-00-734-5281
NSN 5930-01-382-1738
NSN 6220-00-809-6071
NSN 6620-01-244-3427
NSN 6240-01-471-1634