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 6220-01-091-2470
NSN 5985-01-579-7460
NSN 5835-01-426-6573
NSN 5925-01-029-3483
NSN 5915-01-315-8940
NSN 5998-00-099-7214
NSN 5960-01-325-2241
NSN 5930-01-427-3676
NSN 6220-01-259-4420
NSN 5950-01-387-5561
NSN 5930-01-239-5174
NSN 5935-01-417-9818