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 7035-01-438-2108
NSN 6620-00-555-3992
NSN 5910-00-089-8999
NSN 2925-01-370-6898
NSN 2925-00-149-0760
NSN 5910-01-020-9476
NSN 5998-00-518-7772
NSN 5996-01-467-2177
NSN 6220-00-069-5239
NSN 5985-01-102-5444
NSN 6135-00-985-7846
NSN 5960-01-054-3752