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 5960-00-233-5488
NSN 5975-00-561-0968
NSN 4140-01-417-4369
NSN 5965-01-283-2531
NSN 5855-01-532-4453
NSN 6685-00-050-1353
NSN 5999-01-646-7227
NSN 6220-01-476-9371
NSN 5930-01-271-7854
NSN 5960-01-288-8910
NSN 5985-00-200-9876
NSN 4140-01-124-0623