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 4140-01-223-4922
NSN 6685-01-044-4156
NSN 5999-00-930-2346
NSN 6650-01-177-0632
NSN 5950-00-931-9979
NSN 5835-00-451-2982
NSN 5985-01-391-5629
NSN 5990-00-111-3614
NSN 5920-01-239-2038
NSN 5998-00-916-8415
NSN 5990-00-067-6791
NSN 5990-00-189-6649