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 5990-01-179-5625
NSN 4140-00-458-2662
NSN 5835-01-238-3381
NSN 5895-01-624-5653
NSN 5950-00-520-6651
NSN 6650-00-316-0260
NSN 6645-00-117-9839
NSN 5998-01-451-3539
NSN 6645-00-433-3075
NSN 5985-00-538-5815
NSN 5999-01-212-9507
NSN 5950-01-586-1910