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 6320-01-607-1491
NSN 6240-01-633-9357
NSN 4140-00-163-6200
NSN 5996-01-233-9893
NSN 5975-00-606-8604
NSN 5975-01-367-7565
NSN 5935-00-912-5926
NSN 5945-01-495-4047
NSN 2925-01-338-5157
NSN 6620-01-551-7922
NSN 6320-01-425-1417
NSN 6135-01-466-3980