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 5998-01-211-6752
NSN 6685-00-336-3135
NSN 6610-01-624-1188
NSN 6320-00-823-2015
NSN 4140-01-274-4762
NSN 6645-01-600-5653
NSN 5975-00-935-2293
NSN 6620-00-500-0041
NSN 5975-01-437-8869
NSN 6320-01-117-5516
NSN 6650-01-630-2223
NSN 6145-01-146-5555