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 4140-00-293-7847
NSN 5855-00-821-7512
NSN 6240-01-648-6370
NSN 5985-01-657-5624
NSN 5915-01-388-2183
NSN 6320-01-651-5210
NSN 5835-01-317-4840
NSN 6110-01-058-5321
NSN 5965-00-716-7078
NSN 6135-00-223-9563
NSN 5895-01-552-5884
NSN 4140-01-119-2879