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 6135-00-488-4478
NSN 5985-01-014-4924
NSN 5835-00-257-2852
NSN 6145-01-287-6713
NSN 5945-00-930-3105
NSN 5920-01-412-1080
NSN 5999-01-445-8829
NSN 4140-01-261-2310
NSN 4140-01-336-7113
NSN 7035-00-887-4674
NSN 6130-01-534-5959
NSN 5950-01-566-3940