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 4140-01-229-2742
NSN 4140-00-189-0235
NSN 6240-01-314-5700
NSN 6110-00-967-9007
NSN 4140-01-449-1715
NSN 6150-01-436-9101
NSN 6145-01-185-3720
NSN 6240-00-933-5075
NSN 5960-00-404-9374
NSN 2925-01-054-3190
NSN 5930-01-517-3631
NSN 5999-00-062-1378