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 4140-01-231-5031
NSN 5835-01-044-2628
NSN 4140-00-891-9245
NSN 5915-01-073-6753
NSN 5945-01-062-0670
NSN 6610-01-569-9086
NSN 6610-01-141-7014
NSN 5999-01-014-6512
NSN 5960-01-496-2993
NSN 6610-01-646-9101
NSN 5998-01-478-3027
NSN 6240-01-277-3762