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 5905-01-191-3941
NSN 4140-01-178-6811
NSN 6620-01-278-8028
NSN 6240-00-925-2194
NSN 5960-01-142-1995
NSN 5985-00-945-2941
NSN 7035-01-037-7400
NSN 5945-00-871-7814
NSN 6110-01-051-2211
NSN 5925-01-442-7357
NSN 5945-01-274-6926
NSN 4140-01-076-3720