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 5975-00-268-3818
NSN 4140-01-485-0474
NSN 5835-00-198-4936
NSN 6240-01-050-6743
NSN 6620-01-261-2985
NSN 6685-01-199-0673
NSN 6135-01-592-4139
NSN 6240-01-178-5141
NSN 6110-01-357-7952
NSN 5998-00-533-8621
NSN 5835-00-655-1000
NSN 5930-01-292-0068