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 5985-01-634-0635
NSN 5960-01-438-0245
NSN 5990-01-100-7231
NSN 4140-01-370-1309
NSN 6650-01-601-5282
NSN 6240-00-248-6517
NSN 6645-00-232-4070
NSN 5990-00-313-8688
NSN 5999-01-537-5706
NSN 6620-00-568-3947
NSN 5930-01-153-2667
NSN 5930-01-230-2251