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 5920-00-652-5471
NSN 6610-00-267-9944
NSN 6220-01-431-7319
NSN 6110-01-411-6619
NSN 6320-00-731-6134
NSN 5965-00-929-9415
NSN 5998-01-586-8404
NSN 5930-01-196-5174
NSN 5905-00-558-4771
NSN 6685-00-887-1477
NSN 5999-01-023-9417
NSN 5895-00-554-4573