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 5915-00-242-7749
NSN 5965-00-431-2492
NSN 5835-01-232-6904
NSN 6110-01-633-2709
NSN 6320-00-701-0437
NSN 5935-01-016-9950
NSN 5996-01-633-7979
NSN 6130-01-543-1227
NSN 5945-01-372-4360
NSN 4140-01-595-6428
NSN 5960-01-187-7400
NSN 5960-01-628-2760