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 5920-01-159-3791
NSN 5835-01-469-8968
NSN 6650-00-518-5194
NSN 5996-01-131-4115
NSN 5935-01-078-0003
NSN 6610-01-408-1134
NSN 5960-01-328-8248
NSN 5950-01-394-5352
NSN 4140-01-474-5007
NSN 4140-01-501-3357
NSN 6130-01-510-7555
NSN 6610-01-145-2569