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 5935-00-637-2643
NSN 5910-01-073-8072
NSN 6620-00-484-4662
NSN 2925-01-587-3956
NSN 5990-00-860-9207
NSN 6650-00-197-7563
NSN 5835-01-341-1163
NSN 4140-01-354-1228
NSN 6650-00-471-1117
NSN 6620-00-286-5721
NSN 4140-00-139-5799
NSN 5965-01-484-9818