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 4140-01-315-9304
NSN 5990-01-327-1558
NSN 5945-00-318-5934
NSN 5975-01-644-2060
NSN 5910-01-069-0266
NSN 6620-01-104-5510
NSN 5998-01-519-9273
NSN 6110-01-446-7042
NSN 6135-00-276-7625
NSN 5975-01-388-6104
NSN 5905-01-461-3065
NSN 5835-01-250-6027