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 5998-01-242-4243
NSN 6320-01-549-7201
NSN 5945-00-530-4913
NSN 5895-01-548-1122
NSN 5895-00-208-7581
NSN 5975-00-614-9686
NSN 5975-01-487-3692
NSN 6320-01-019-1028
NSN 6110-00-826-0394
NSN 5835-00-978-4473
NSN 6240-01-601-6427
NSN 4140-01-350-4475