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 5920-00-155-2173
NSN 6220-01-539-5970
NSN 5960-01-156-7469
NSN 6145-01-641-4027
NSN 5998-01-183-9238
NSN 6150-01-091-9818
NSN 5915-01-320-2528
NSN 5965-01-374-9075
NSN 5996-00-947-0804
NSN 5998-01-558-5601
NSN 6650-01-606-1597
NSN 6110-01-437-8559