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 5990-01-411-5930
NSN 4140-00-554-7273
NSN 5855-01-372-1622
NSN 6240-01-049-2871
NSN 5965-01-415-0872
NSN 4140-01-085-4965
NSN 5855-00-357-1158
NSN 5925-00-650-1069
NSN 6220-01-492-8374
NSN 5920-01-593-8848
NSN 6110-01-582-4504
NSN 6650-01-230-5155