2.5 od x 2.1 id x .210
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 6130-01-458-7406
NSN 5930-00-134-5745
NSN 7035-00-849-5526
NSN 5895-00-574-0287
NSN 5998-00-473-2035
NSN 5925-00-752-8292
NSN 7035-01-495-5063
NSN 5920-01-521-4262
NSN 5990-01-219-9018
NSN 5915-00-681-6299
NSN 6610-01-508-6272
NSN 6645-01-076-4655