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 6645-00-462-7072
NSN 6110-01-449-1988
NSN 2925-01-573-1067
NSN 5905-01-474-6116
NSN 6620-01-478-9667
NSN 6620-00-004-1374
NSN 6645-00-010-3054
NSN 6105-00-068-3494
NSN 5990-00-244-8684
NSN 5835-01-103-1384
NSN 5975-01-427-3521
NSN 5925-01-056-5127