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 6620-01-399-3615
NSN 6320-00-300-5556
NSN 6220-01-585-0726
NSN 4140-01-158-0786
NSN 5960-01-252-8821
NSN 6650-01-623-0129
NSN 5915-00-278-5561
NSN 5998-01-571-9893
NSN 6645-01-133-8359
NSN 4140-01-422-2226
NSN 5965-01-502-2078
NSN 6105-00-268-2878