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 5975-01-121-4324
NSN 6610-01-454-8386
NSN 6320-00-186-6452
NSN 5996-01-128-8802
NSN 6645-01-620-0044
NSN 6130-01-501-6055
NSN 6240-00-275-1950
NSN 6130-01-201-7929
NSN 2925-01-654-2478
NSN 5835-01-119-8561
NSN 5950-00-280-1452
NSN 5998-01-045-8227