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 6320-00-261-9136
NSN 6220-01-358-2002
NSN 4140-01-339-5355
NSN 5998-00-178-1040
NSN 4140-01-457-9747
NSN 6645-00-179-8676
NSN 5835-01-082-8841
NSN 6645-01-432-7943
NSN 6650-00-155-8331
NSN 6130-01-105-2998
NSN 5915-01-564-7706
NSN 2925-01-318-8853