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 6320-01-304-3639
NSN 4140-01-378-5753
NSN 6650-01-050-8680
NSN 5965-01-433-1974
NSN 5999-01-592-0566
NSN 6645-01-437-7770
NSN 6645-00-851-6654
NSN 5915-01-393-7291
NSN 6610-00-586-6525
NSN 6320-00-546-9249
NSN 5990-01-042-1984
NSN 4140-00-368-4261