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 5990-01-290-4787
NSN 5920-01-415-2878
NSN 6650-01-497-5348
NSN 6110-01-605-3352
NSN 5985-00-955-6637
NSN 6620-01-104-5758
NSN 6130-01-308-6774
NSN 5960-01-328-8248
NSN 6150-01-093-4262
NSN 5835-00-518-4507
NSN 5990-00-883-6364
NSN 6105-01-557-4372