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 4140-01-456-0891
NSN 6685-00-519-5213
NSN 5945-01-634-0588
NSN 5920-00-391-6252
NSN 5990-00-518-3195
NSN 5855-00-327-2112
NSN 5910-00-766-6272
NSN 5965-00-870-1980
NSN 6240-01-431-5790
NSN 5855-01-040-0107
NSN 5905-00-171-2158
NSN 5985-01-645-3454