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 5835-00-251-9138
NSN 5975-00-632-8772
NSN 5915-01-597-3387
NSN 2925-00-513-6644
NSN 6105-01-393-1750
NSN 6650-01-211-9642
NSN 6650-01-267-9886
NSN 6240-00-357-7976
NSN 7035-00-349-8571
NSN 4140-00-804-5667
NSN 5965-01-537-0023
NSN 7035-01-361-4176