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 5935-00-694-1237
NSN 5990-00-288-1820
NSN 6145-01-605-4175
NSN 6150-00-082-3305
NSN 7035-01-297-7941
NSN 5998-01-310-7896
NSN 5915-00-249-1641
NSN 6320-01-450-7083
NSN 6685-01-659-6927
NSN 6320-01-181-9474
NSN 6135-00-519-1325
NSN 6620-01-373-4588