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 5835-01-251-7301
NSN 6240-01-530-3554
NSN 6610-00-219-4150
NSN 5996-00-843-9946
NSN 6650-00-196-5311
NSN 5996-01-355-8420
NSN 2925-01-426-3410
NSN 6240-01-168-4533
NSN 5996-00-808-5563
NSN 5975-01-514-7571
NSN 5835-00-256-5558
NSN 5935-01-345-7924