Od is 0.375 in
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 5965-01-412-4419
NSN 5985-01-348-5871
NSN 6150-00-144-7115
NSN 4140-01-500-2334
NSN 6105-01-156-5361
NSN 5910-01-051-8336
NSN 5999-01-223-6383
NSN 5895-00-969-6137
NSN 5925-00-315-2238
NSN 5855-01-468-9822
NSN 6620-01-412-0938
NSN 5990-01-013-8464