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 4140-01-328-6356
NSN 6645-00-079-1430
NSN 6320-01-544-6447
NSN 4140-01-172-8368
NSN 5910-01-318-9395
NSN 5915-01-648-2126
NSN 5925-01-092-5018
NSN 6145-00-064-4918
NSN 5920-01-063-7427
NSN 6610-00-823-9159
NSN 5895-01-166-8046
NSN 6645-01-249-7209