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 5930-00-127-1368
NSN 6620-01-519-1387
NSN 5998-01-095-2209
NSN 6110-01-600-7004
NSN 6110-01-507-0457
NSN 6150-00-485-5643
NSN 5998-01-593-8616
NSN 5905-00-922-1615
NSN 5990-00-467-7431
NSN 5945-01-634-0588
NSN 6105-00-598-4910
NSN 2925-00-555-8836