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 5910-00-543-0251
NSN 5965-01-633-8849
NSN 6645-00-376-4829
NSN 5999-01-424-0566
NSN 5996-01-418-2802
NSN 5855-01-506-6767
NSN 5990-01-443-2931
NSN 6150-01-226-1126
NSN 5975-01-419-9073
NSN 5990-01-498-0641
NSN 5960-01-347-6791
NSN 6650-01-596-5983