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 6645-01-552-4570
NSN 5925-01-392-4054
NSN 5960-00-960-6805
NSN 5835-00-660-4523
NSN 6220-01-473-4602
NSN 5925-01-489-2791
NSN 5990-01-121-1175
NSN 6105-01-625-8842
NSN 5990-01-193-0487
NSN 5930-01-202-0773
NSN 5935-01-622-7810
NSN 6240-00-813-6328