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 5905-01-634-0595
NSN 5920-01-357-3370
NSN 6650-00-134-5130
NSN 5895-01-286-9416
NSN 6650-01-185-2544
NSN 6220-01-453-4237
NSN 4140-01-607-7883
NSN 5990-01-460-6390
NSN 5915-01-280-3041
NSN 6620-01-378-5579
NSN 5935-01-130-8542
NSN 5915-00-739-5269