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 5935-01-250-2325
NSN 6650-01-576-1608
NSN 5925-00-682-4096
NSN 5915-01-463-3347
NSN 6320-01-422-1212
NSN 5915-01-319-4514
NSN 5935-01-145-4944
NSN 5950-01-298-1408
NSN 5960-00-368-4084
NSN 6135-00-196-5267
NSN 5960-01-167-8796
NSN 5975-01-477-1509