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 5920-01-056-7603
NSN 6135-00-583-3966
NSN 5930-01-634-0659
NSN 5999-00-254-8588
NSN 5960-01-458-6484
NSN 5975-01-469-6062
NSN 6220-00-707-5044
NSN 6135-00-078-9931
NSN 6610-00-647-3830
NSN 5999-01-413-2876
NSN 6220-01-168-1139
NSN 5935-00-929-7874