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 6240-01-139-3377
NSN 4140-01-108-9084
NSN 6110-01-515-8760
NSN 5985-01-043-1554
NSN 6320-01-389-5853
NSN 6650-01-462-5879
NSN 6620-00-010-1415
NSN 4140-00-450-1989
NSN 6685-01-583-5151
NSN 6610-00-922-9423
NSN 5915-00-542-2179
NSN 6610-00-152-7216