3.875 in. Od
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.
Classification: Gaskets, washers and other seals, of vulcanized rubber other than hard rubber
NSN 6145-01-505-4070
NSN 4140-01-025-9699
NSN 5920-01-178-9581
NSN 4140-01-548-2551
NSN 5920-00-543-1266
NSN 6130-01-578-1475
NSN 5965-00-524-5521
NSN 5990-01-460-6390
NSN 5945-01-558-9781
NSN 6620-01-513-4143
NSN 5965-00-905-5197
NSN 6145-01-005-4654