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 6620-00-239-6153
NSN 6650-01-376-6965
NSN 4140-01-469-2266
NSN 5930-01-330-8023
NSN 5895-01-588-4582
NSN 5920-00-350-9474
NSN 5950-01-071-6322
NSN 6135-01-148-8531
NSN 5905-01-157-9611
NSN 5998-01-530-4336
NSN 5990-01-364-1942
NSN 5990-01-575-3275