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 5999-01-327-9073
NSN 6105-00-598-4910
NSN 6130-01-075-1455
NSN 5905-00-594-7045
NSN 5975-01-444-3602
NSN 5925-01-650-7666
NSN 5975-00-016-4138
NSN 5835-00-589-6300
NSN 6220-00-419-0635
NSN 5895-00-675-4374
NSN 4140-00-577-3512
NSN 6320-01-006-6138