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 4140-01-178-5729
NSN 6645-01-113-6560
NSN 6685-01-232-1134
NSN 5998-01-500-3487
NSN 5990-01-623-0082
NSN 5915-01-342-2535
NSN 5998-00-050-8920
NSN 5950-01-140-1988
NSN 7035-01-202-8172
NSN 6145-01-480-3524
NSN 5960-01-151-4518
NSN 2925-00-176-3889