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 5985-01-454-4143
NSN 5999-01-063-7408
NSN 5915-00-516-9987
NSN 5910-01-140-9744
NSN 6110-01-264-8687
NSN 6240-00-883-1731
NSN 5960-01-599-9821
NSN 6685-01-303-6512
NSN 5920-00-074-4654
NSN 5930-01-319-4080
NSN 4140-01-420-7269
NSN 5950-01-239-3976