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 6620-01-307-0311
NSN 4140-00-198-4961
NSN 5915-01-607-4773
NSN 5945-01-420-9757
NSN 6130-00-525-9271
NSN 5950-00-322-7064
NSN 5999-00-581-5253
NSN 5945-01-422-8162
NSN 5996-01-295-7854
NSN 5950-01-572-0951
NSN 6240-00-411-8499
NSN 5945-01-250-5634