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 4140-00-925-9218
NSN 6620-00-147-6034
NSN 6620-01-118-2337
NSN 5855-00-149-0766
NSN 6320-01-157-9076
NSN 5895-01-323-4754
NSN 5950-01-074-6340
NSN 6650-00-491-7920
NSN 5990-01-601-0466
NSN 5990-00-980-7808
NSN 5930-00-792-2296
NSN 6145-00-969-5612