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 5985-01-254-4081
NSN 2925-01-480-3351
NSN 4140-00-518-2744
NSN 5950-01-092-0030
NSN 6610-00-704-9754
NSN 6150-00-004-1225
NSN 6645-01-048-4671
NSN 5920-01-518-1456
NSN 5925-01-226-8320
NSN 6145-00-808-6429
NSN 5965-01-303-6105
NSN 5999-01-181-6402