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 5935-01-256-3544
NSN 5855-01-039-2859
NSN 5998-00-601-0491
NSN 5935-01-264-2857
NSN 6645-01-069-0072
NSN 6645-01-012-5972
NSN 5998-01-646-4186
NSN 5998-00-976-1860
NSN 5925-01-516-2823
NSN 6130-01-361-0136
NSN 5990-01-602-6701
NSN 6135-00-276-7625