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 6320-00-284-1524
NSN 6685-01-193-2110
NSN 6620-01-398-8986
NSN 6105-00-497-9406
NSN 5975-00-424-3403
NSN 6685-00-688-5154
NSN 6110-01-467-7544
NSN 6610-01-438-6896
NSN 5975-00-582-1460
NSN 5835-00-187-1481
NSN 4140-01-588-2905
NSN 6130-01-348-6608