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 6130-00-399-0729
NSN 6145-01-022-0515
NSN 6135-00-628-1142
NSN 5985-00-172-9156
NSN 6320-01-497-3116
NSN 5990-00-740-0249
NSN 5855-00-298-0261
NSN 5920-01-462-4910
NSN 5895-01-645-8227
NSN 5855-00-408-2611
NSN 7035-01-088-6415
NSN 6135-01-512-8740