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 4140-00-252-0879
NSN 4140-00-554-4050
NSN 5915-01-467-6264
NSN 5915-01-561-2476
NSN 5920-01-503-4624
NSN 5920-00-764-0746
NSN 5965-00-350-2367
NSN 4140-01-406-5344
NSN 5985-00-400-9859
NSN 6145-01-514-7305
NSN 6105-01-265-8693
NSN 5910-01-330-0483