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 5920-00-912-5612
NSN 4140-00-936-5636
NSN 6150-01-414-1822
NSN 6220-00-548-1999
NSN 2925-00-236-9986
NSN 6145-01-616-6190
NSN 5998-00-265-1001
NSN 5998-01-585-0648
NSN 6220-00-142-5115
NSN 5835-01-441-4746
NSN 5960-00-135-0750
NSN 5905-00-980-8810