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 5975-01-433-2049
NSN 2925-01-339-6972
NSN 6220-00-701-0677
NSN 6650-01-192-7449
NSN 4140-01-338-2154
NSN 5905-01-179-5251
NSN 6610-01-278-2446
NSN 5996-00-766-7711
NSN 5920-01-475-1979
NSN 5996-01-409-1860
NSN 5920-00-146-4109
NSN 5975-01-161-6531