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 6320-00-894-1644
NSN 5905-01-434-9149
NSN 5960-01-011-8687
NSN 5999-01-513-4270
NSN 6135-01-294-2131
NSN 6110-01-285-8817
NSN 5835-00-015-3605
NSN 5945-01-260-7741
NSN 6650-01-199-7347
NSN 5910-01-601-9842
NSN 6135-01-218-3660
NSN 6685-00-100-1511