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 5975-01-025-9990
NSN 6220-01-565-5572
NSN 6110-01-032-2899
NSN 6150-01-430-2564
NSN 5996-00-155-9309
NSN 5998-01-340-6370
NSN 5999-01-414-5398
NSN 6130-01-129-4876
NSN 5990-00-419-7584
NSN 5965-01-310-0634
NSN 5990-00-698-3963
NSN 4140-01-283-2287