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.
NSN 5925-00-290-4451
NSN 5990-01-379-2337
NSN 5920-01-406-6637
NSN 6645-00-884-5845
NSN 6135-01-328-0639
NSN 6320-01-425-1417
NSN 4140-01-188-8160
NSN 4140-01-555-3124
NSN 6110-01-026-0312
NSN 6145-01-503-1445
NSN 6320-01-280-5091
NSN 6105-01-252-2926