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 5835-01-003-8076
NSN 2925-01-408-6205
NSN 6220-01-023-0394
NSN 5965-01-445-8953
NSN 5975-00-727-0223
NSN 5915-00-681-7608
NSN 5930-01-135-8702
NSN 5945-01-069-8070
NSN 5905-01-360-7442
NSN 5930-00-152-9386
NSN 4140-00-732-9427
NSN 4140-01-005-0154