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 5915-00-671-6463
NSN 6220-01-097-4321
NSN 6620-00-708-3323
NSN 5925-01-459-7882
NSN 5915-00-973-6803
NSN 4140-01-314-8251
NSN 5910-01-598-2855
NSN 5945-00-583-7893
NSN 5965-01-509-3841
NSN 5925-00-597-1558
NSN 6105-00-974-0207
NSN 5835-01-218-5560