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 4140-01-641-2208
NSN 6645-01-633-1852
NSN 6610-01-603-0703
NSN 5905-01-313-3890
NSN 5965-00-171-1265
NSN 6220-01-519-0203
NSN 5990-01-008-2515
NSN 5960-01-239-9651
NSN 5910-01-199-2676
NSN 5920-01-094-7284
NSN 6220-01-495-7661
NSN 6240-00-266-6258