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 6240-00-518-3541
NSN 5998-01-013-0819
NSN 5920-00-627-8737
NSN 6105-00-200-8074
NSN 6105-01-571-6598
NSN 5930-01-252-2498
NSN 6150-00-679-3285
NSN 5950-01-419-6769
NSN 5855-01-184-8089
NSN 5935-01-044-2300
NSN 6645-01-096-4270
NSN 4140-01-442-1670