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 6105-01-248-6859
NSN 5905-01-467-2577
NSN 5905-01-296-3444
NSN 5835-01-416-6455
NSN 6220-01-299-7918
NSN 5998-01-604-4563
NSN 2925-00-808-5077
NSN 5915-01-100-3241
NSN 5905-00-055-1701
NSN 5935-00-707-6148
NSN 2925-00-183-4390
NSN 5915-01-461-4310