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 5960-00-621-2055
NSN 6110-01-486-9016
NSN 6220-01-595-6848
NSN 6620-01-608-2682
NSN 6685-01-345-4834
NSN 6130-01-259-0640
NSN 4140-00-019-1697
NSN 5945-01-208-0796
NSN 5990-01-537-1124
NSN 5998-00-659-9533
NSN 5999-01-006-6484
NSN 5920-01-634-0250