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 6320-00-107-5291
NSN 6240-00-635-9953
NSN 6135-01-643-3114
NSN 6650-00-197-7563
NSN 5920-01-316-1710
NSN 5996-01-219-5091
NSN 4140-01-534-8125
NSN 5925-00-488-2741
NSN 5915-01-513-9122
NSN 5990-01-344-7778
NSN 5945-01-055-7486
NSN 5985-00-230-1828