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 5935-01-156-4527
NSN 6135-01-469-6429
NSN 6620-01-493-6072
NSN 5996-00-111-7217
NSN 6610-00-411-7246
NSN 6650-01-399-8552
NSN 5895-01-385-6638
NSN 6220-00-408-3413
NSN 6645-01-633-1852
NSN 6650-00-732-5031
NSN 6645-01-069-1304
NSN 5999-00-237-7362