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 5835-00-752-6065
NSN 6220-01-363-9713
NSN 5950-01-268-8729
NSN 5998-01-511-0109
NSN 6240-01-143-8976
NSN 5990-00-251-0965
NSN 5965-00-729-6835
NSN 5915-00-203-2859
NSN 6110-01-487-1014
NSN 5950-01-589-6081
NSN 6650-01-576-3258
NSN 6650-01-213-1231