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 5985-00-105-8764
NSN 6610-01-165-0232
NSN 6240-00-031-3112
NSN 4140-01-476-7871
NSN 6220-01-327-2817
NSN 6110-00-331-3620
NSN 5905-01-406-1539
NSN 6645-00-445-3318
NSN 6240-00-156-1607
NSN 5950-00-584-4571
NSN 6610-01-620-7711
NSN 6645-00-429-0172