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 5990-01-633-9503
NSN 4140-01-157-8882
NSN 6135-01-447-5083
NSN 2925-01-330-2988
NSN 5945-01-152-1834
NSN 5985-01-134-4117
NSN 6145-01-366-3707
NSN 6320-01-488-5581
NSN 6320-01-459-6992
NSN 5945-00-752-1002
NSN 6240-00-627-9007
NSN 6645-01-030-8930