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 5920-01-634-0250
NSN 6645-00-925-3857
NSN 5985-01-440-5331
NSN 4140-01-008-2026
NSN 5935-01-480-0215
NSN 5835-01-126-9358
NSN 5990-00-754-2842
NSN 5835-01-493-1826
NSN 5965-01-231-5047
NSN 5985-01-028-0682
NSN 5835-00-679-4604
NSN 5960-00-275-7497