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 4140-01-145-0122
NSN 6150-01-003-4421
NSN 6130-01-042-4146
NSN 5965-01-575-8900
NSN 5930-01-531-3056
NSN 6145-01-003-5323
NSN 5910-01-181-9716
NSN 6620-00-767-6657
NSN 5920-01-065-1824
NSN 5905-01-523-3701
NSN 5975-01-529-7923
NSN 5910-00-615-6646