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 4140-01-490-0200
NSN 5999-01-419-9880
NSN 5920-00-172-5551
NSN 5960-01-197-4461
NSN 6650-00-163-6064
NSN 5960-01-641-5493
NSN 5975-01-309-7349
NSN 5990-01-206-3606
NSN 5855-01-346-7682
NSN 5930-00-989-6952
NSN 6620-01-541-5480
NSN 4140-01-120-1622