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 5985-00-078-9631
NSN 6650-01-051-7664
NSN 5895-00-285-2212
NSN 6610-01-255-4544
NSN 6240-00-400-7980
NSN 5950-00-678-4048
NSN 6320-01-476-7702
NSN 6220-01-502-9451
NSN 5925-01-177-1147
NSN 4140-00-270-4457
NSN 5965-00-568-5802
NSN 5855-01-470-4079