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 7035-00-104-7613
NSN 6105-00-807-0713
NSN 6240-00-408-9545
NSN 5985-01-534-9915
NSN 6650-01-090-6552
NSN 5920-01-558-8237
NSN 6610-01-564-3040
NSN 5965-01-611-0131
NSN 6240-01-443-0519
NSN 5998-01-065-2393
NSN 4140-01-269-7911
NSN 6105-01-476-8040