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 6220-01-632-0405
NSN 4140-00-690-0382
NSN 7035-01-005-6971
NSN 4140-01-462-1336
NSN 6645-01-400-2119
NSN 6650-00-927-3391
NSN 6620-01-435-2784
NSN 6610-00-934-1044
NSN 6130-01-346-4737
NSN 6135-01-626-3219
NSN 6110-01-645-0322
NSN 5855-01-634-0259