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 5960-01-522-0391
NSN 6620-00-137-0332
NSN 5835-00-315-3797
NSN 5999-01-179-2796
NSN 5855-01-068-3683
NSN 6620-00-959-6614
NSN 6650-01-433-7002
NSN 6105-01-502-4860
NSN 5855-01-321-3881
NSN 5855-01-450-0137
NSN 5965-01-392-5539
NSN 5910-00-145-5754