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 5920-01-521-6928
NSN 5990-01-378-1444
NSN 5950-00-932-3232
NSN 5996-01-050-0900
NSN 5930-00-814-2185
NSN 5999-00-725-8539
NSN 6145-01-110-2746
NSN 6135-00-738-5571
NSN 5975-00-032-4641
NSN 5915-01-074-2008
NSN 5930-01-593-1054
NSN 6110-01-527-5315