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 5999-00-193-8398
NSN 6650-00-707-1417
NSN 5999-00-525-4320
NSN 4140-00-836-6319
NSN 4140-01-592-6145
NSN 6650-00-007-4372
NSN 5920-01-586-6108
NSN 6145-01-577-2077
NSN 6650-01-226-2397
NSN 5935-00-294-9526
NSN 5960-00-397-7744
NSN 6610-01-067-6591