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 4140-01-417-4369
NSN 5965-00-150-1144
NSN 7035-01-152-7331
NSN 5925-01-500-2433
NSN 6620-01-014-7192
NSN 5930-01-492-6219
NSN 5945-01-035-9735
NSN 6620-00-239-6153
NSN 5835-01-178-4154
NSN 5895-01-461-9280
NSN 5965-00-783-8239
NSN 6240-01-248-9911