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 6610-01-216-9542
NSN 6620-00-583-2687
NSN 6620-01-377-8178
NSN 6685-01-047-1479
NSN 5835-01-647-6426
NSN 5915-01-525-7731
NSN 5999-01-503-2208
NSN 5965-01-015-0744
NSN 5930-01-317-2085
NSN 5835-01-546-2008
NSN 4140-00-001-1536
NSN 4140-01-350-3277