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 5990-00-038-6482
NSN 5960-01-539-1956
NSN 6150-01-333-6279
NSN 5945-01-387-3856
NSN 5905-00-996-0659
NSN 2925-01-495-1178
NSN 5999-00-707-6083
NSN 6105-01-227-0388
NSN 5945-01-215-6073
NSN 5975-01-363-8875
NSN 6220-00-276-2785
NSN 5960-01-112-0721