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 4140-01-032-3705
NSN 5920-01-349-9181
NSN 5950-01-137-4033
NSN 6620-01-024-7003
NSN 5855-01-157-6465
NSN 6220-00-296-4101
NSN 5910-00-945-0313
NSN 6135-00-422-3967
NSN 5950-01-391-6550
NSN 5895-01-106-4161
NSN 5930-01-098-4077
NSN 4140-01-304-1597