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 6240-00-455-7640
NSN 6620-01-483-1138
NSN 6150-01-556-9366
NSN 5930-01-437-1465
NSN 5960-01-023-8037
NSN 5950-01-197-7625
NSN 6130-01-360-5637
NSN 5985-01-410-9751
NSN 5996-01-082-1294
NSN 6105-00-900-2486
NSN 5855-00-949-8143
NSN 5990-01-458-9576