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 5920-00-704-5718
NSN 5945-00-177-4676
NSN 6105-01-449-9954
NSN 6220-00-099-9192
NSN 6240-00-703-6614
NSN 5910-00-061-9084
NSN 6645-01-170-0341
NSN 5920-00-213-1878
NSN 5998-00-265-1001
NSN 6130-00-818-6171
NSN 2925-01-027-1293
NSN 5855-00-288-1408