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 6240-01-420-7304
NSN 6620-00-165-1749
NSN 6320-01-574-1915
NSN 6220-01-324-7046
NSN 4140-01-242-2296
NSN 6110-01-157-9341
NSN 6650-01-183-0711
NSN 5855-01-462-0495
NSN 6240-00-306-9214
NSN 5960-00-788-2976
NSN 6110-01-038-2028
NSN 6220-01-634-0660